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Member "syslinux-6.03/NEWS" (6 Oct 2014, 78050 Bytes) of package /linux/misc/syslinux-6.03.tar.gz:


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    1 Starting with 1.47, changes marked with SYSLINUX, PXELINUX, ISOLINUX
    2 or EXTLINUX apply to that specific program only; other changes apply
    3 to all derivatives.
    4 
    5 Changes in 6.03:
    6 	* chain: Fix chainloading on 6.02 (Raphael S. Carvalho).
    7 	* core: Do not leak the __lowmem and __bss16 macros to modules;
    8 	  hide them so modules will not use them.
    9 	* load_linux: Do not use size heuristic for non-relocatable
   10 	  kernels, for zImage kernels and for non-Linux kernels.
   11 	* PXELINUX: Fix the SENDCOOKIES feature for HTTP
   12 	  (Russel Santillanes).
   13 	* gnu-efi: Add gnu-efi as a submodule.
   14 	* ANSI: Support color tables with more than 256 entries
   15 	  (James Buren).
   16 	* EFI: Fix displayed version; add DATE (Gene Cumm)
   17 	* PXELINUX, EFI: Fix bad read of file size over TFTP on EFI64
   18 	  (Sylvain Gault).
   19 	* Fix hand over to kernel:
   20 	  "Booting kernel failed: Invalid argument" error.
   21 	* ISOLINUX: EDX, LBA values higher than 65535; work around for
   22 	  buggy BIOS, where the system would hang, would reboot, or
   23 	  would show a "Disk error 01, AX=42" message.
   24 	* core/legacynet: Enable dot quad resolution (Gene Cumm).
   25 	* diag/geodsp improvements (Gene Cumm).
   26 	* DOS: Fix syslinux.com DOS-based installer.
   27 	* Improve gcc 4.3.0 compatibility.
   28 	* syslxint: fix compilation on non-x86 architectures.
   29 	* localboot: Fix "localboot 0x80" and similar cases.
   30 	* Add memset() calls prior to any intcall() and other mem fixes;
   31 	  specially relevant for older hardware and/or buggy BIOS.
   32 	* poweroff.c32: Fixes (Gene Cumm).
   33 	* HDT: Fix memory leak in CLI (Felipe Pena).
   34 	* ACPI: Remove memset of buffer; it makes things clearer but
   35 	  also prevents some compilation warnings (Erwan Velu).
   36 	* Add manpages for isohybrid, memdiskfind
   37 	  (Peter Jones, Gene Cumm).
   38 	* ISOLINUX: Experimental Rock Ridge support (Thomas Schmitt).
   39 	* comapi: Remove the comapi interfaces.
   40 	* EFI: Fixes on PE files and OVMF compatibility
   41 	  (Sylvain Gault, Gene Cumm).
   42 	* EFI: Updates and fixes for gnu-efi sub-module
   43 	  (Sylvain Gault, Gene Cumm).
   44 	* BIOS: Fix low memory check.
   45 	* Filesystem UUID to SYSAPPEND bit 0x40000 for FAT and ext2
   46 	  (Serj Kalichev).
   47 	* Makefiles: Export the firmware type as a cpp variable.
   48 	  Additional improvements. Fix "make spotless".
   49 	* core, BIOS: Move __syslinux_shuffler_size to assembly.
   50 	  Actually get the shuffler size sanely. Fix booting recent
   51 	  Syslinux versions on certain hardware and on certain
   52 	  virtualization software (e.g. QEMU 0.11.1, VirtualBox 4.1.x).
   53 	* lua: Upgrade to v.5.2.3 (Ferenc W√°gner) and additional fixes.
   54 	* chainload: Fixes to chain.c32 and pxechn.c32.
   55 	* NTFS: Make byte_shift a constant.
   56 	* NTFS: Correct parsing of file runs (Andy Alex).
   57 	* core, BIOS: Correct detection of EDD (Andy Alex).
   58 	* core: Avoid initializing the cache more than once
   59 	  (Raphael S. Carvalho).
   60 	* NTFS: Handle fragmented $MFT file (Andy Alex).
   61 	* BIOS: Use int 0x16, ah=0x02 to probe for shift flags. Attempt
   62 	  workaround for USB keyboards not responding at boot time.
   63 	* kbd: Getting the keyboard shift state is now a firmware method.
   64 	* kbd: Fix force-prompt features.
   65 	* BTRFS: Fix booting on BTRFS.
   66 	* cache, btrfs: Provide a general cached read routine.
   67 	* NTFS: Correct file->offset usage in ntfs_readdir (Andy Alex).
   68 	* New support for UFS/FFS (UFS1/2) (Raphael S. Carvalho).
   69 	* adv: Remove double definition;
   70 	  it should fix uses of the ADV, including "--once".
   71 	* memdump: Remove old obsolete COM16 binary.
   72 	* isohybrid: Numerous fixes (Thomas Schmitt).
   73 	* chain.c32: Add an adjustable "strict={0,1,2}" flag, improve
   74 	  error reporting (Michal Soltys.)
   75 	* lpxelinux.0: Workaround for various buggy BIOSes (Gene
   76 	  Cumm.)
   77 	* PXE: Fix a stack-smashing bug which broke a large number of
   78 	  systems.
   79 
   80 Changes in 6.02:
   81 	* efi64: Add support for booting 32-bit kernels.
   82 	* efi: Use the EFI handover protocol when booting kernels if
   83 	  available.
   84 	* Fix various make targets that became broken when switching to
   85 	  per-firmware object directories, including 'make install' and
   86 	  'make netinstall'.
   87 	* efi: Improve handling of packet loss in UDP stack.
   88 	* tests: Introduce a new regression test framework designed to
   89 	  ensure bugs are not reintroduced once fixed.
   90 	* efi: Implement localboot support.
   91 
   92 Changes in 6.01:
   93 	* efi: Mark some symbols as __export otherwise libcom32.c32 and
   94 	  vesamenu.c32 will refuse to load.
   95 	* bios: Wire up the bios kernel loader. It was impossible to
   96 	  load a kernel from bios in 6.00.
   97 	* efi: Fix 'make installer'. There are no EFI installers so
   98 	  don't try and build them as we run into build errors.
   99 	* efi: Reuse the initial TFTP client port in subsequent
  100 	  transfers otherwise the server will send an error packet.
  101 	* efi: Some firmware will not set a default TTL value in IP
  102 	  packets - we must explicitly set it ourselves otherwise a
  103 	  value of zero may be used.
  104 	* bios, font: Fix a font regression affecting some VirtualBox
  105 	  users.
  106 
  107 Changes in 6.00:
  108 	* Add support for booting from EFI.
  109 	* EFI TCP/IP support. This allows the EFI backend to hook into
  110 	  the generic TFTP, HTTP and FTP functionality.
  111 
  112 Changes in 5.11:
  113 	* Dynamic debug support: Add new module, debug.c32, that allows
  114 	  debug code to be dynamically enabled and disabled at runtime.
  115 
  116 Changes in 5.10:
  117 	* PXELINUX: An entirely new network implementation based on
  118 	  the lwIP embedded TCP/IP stack.  As a result, plain PXELINUX
  119 	  can now support HTTP and FTP without gPXE/iPXE.  ls/readdir
  120 	  functionality is supported over HTTP with an indexing
  121 	  webserver, or over FTP with most common FTP servers. For the
  122 	  new network stack use lpxelinux.0. For the legacy stack use
  123 	  pxelinux.0.
  124 	* Rename the "ipappend" option to "sysappend" ("ipappend" is
  125 	  still accepted as an alias) and make it available for all
  126 	  derivatives.  Add additional strings derived from the system
  127 	  DMI/SMBIOS information if available.
  128 	* "sysappend" strings are also sent as http cookies, with the
  129 	  prefix _Syslinux_ added, on all http transfers.  This can be
  130 	  overridden with the SENDCOOKIES configuration file command.
  131 	* poweroff.c32: A new module to power off a system via APM. It
  132 	  replaces the poweroff COMBOOT module (Sebastian Herbszt).
  133 	* PXELINUX: Fix booting with DHCP options 209 and 210 which was
  134 	  broken in 5.00.
  135 	* Handle loading kernel images with no protected mode code. A
  136 	  legitimate kernel image can consist solely of real-mode code.
  137 	  The support for booting such images was broken in 5.00 (Josh Triplett).
  138 	* Fix a regression in the .psf font file loader introduced
  139 	  in 5.00.
  140 
  141 Changes in 5.01:
  142 	* txt/: A new AsciiDoc documentation set (work-in-progress)
  143 	  (Gene Cumm).
  144 	* core: Fix a bug in the realloc() implementation that caused
  145 	  machines to appear to run out of free memory.
  146 	* ldlinux: Fix multiple buffer overflows in cmdline parsing
  147 	  code that resulted in files failing to run and cmdlines
  148 	  being truncated.
  149 	* core: Fix debug build by tagging __bad_SEG() with __export.
  150 	* com32: Restrict library filenames to 8.3 format.
  151 	* EXTLINUX: Fix installation and subdirectory patching.
  152 	* ISOLINUX: Fix booting isohybrid images that are over 32K.
  153 	* com32: Strip modules to reduce their size.
  154 	* XFS: Implement directory block cache and fix
  155           shortform-directory lookup (Paulo Alcantara).
  156 
  157 Changes in 5.00:
  158 	* com32: Switched from the COM32 object format to ELF as it is
  159 	  a much more powerful format that allows undefined symbols to
  160 	  be resolved at runtime and dynamic loading of module
  161 	  dependencies, which means modules now become shared object
  162 	  files instead of statically linked binaries - reducing both
  163 	  disk space and runtime memory consumption.
  164 	* core: Split non-core functionality into ldlinux.c32, which
  165 	  is an ELF module loaded by the core that contains everything
  166 	  the core doesn't require to boot the system, e.g. config
  167 	  parser, command-line interface, etc.
  168 	* Replaced __intcall() calls with direct function calls now
  169 	  that we can resolve undefined symbols at runtime, thanks to
  170 	  the ELF object support. Now that we no longer need to go
  171 	  through the 16-bit interrupt mechanism we can make full use
  172 	  of the 32-bit execution environment. This change required
  173 	  reimplementing lots of the 16-bit assembly code from core/
  174 	  in C.
  175 	* com32: __com32.cs_bounce is gone now we always run in a
  176 	  32-bit environment once we execute ldlinux.c32.
  177 	* ldlinux: A new "PATH" directive was added to the ldlinux.c32
  178 	  config parser that specifies a colon-separated list of
  179 	  directories to search when attempting to load modules.
  180 	* ALL: Delete all references to/code for 16-bit COMBOOT files.
  181 	  COMBOOT files (.cbt and .com) are no longer supported under
  182 	  Syslinux.
  183 
  184 Changes in 4.07:
  185 	* EXTLINUX: fix crash caused by dereferencing garbage pointer.
  186 	* Plug memory leak in searchdir which eventually leads to an
  187 	  observable hang (Shao Miller).
  188 	* ISOLINUX: fix bug triggered by isohybrid images larger than
  189 	  32K which results in an invalid image checksum error.
  190 	* menugen: make it Py3k compatible (Paulo Alcantara).
  191 
  192 Changes in 4.06:
  193 	* Support for NTFS, by Paulo Alcantara.
  194 	* EXTLINUX: more robust device detection, allow user to override.
  195 	* kontron_wdt.c32: Add a new module to enable the hardware
  196 	  watchdog of some Kontron boards. It allows enabling the watchdog
  197 	  and then booting a given image.
  198 	* HDT updated, and now can display images regarding some detection
  199 	  steps. Add postexec command to run a particular entry after
  200 	  HDT's execution, add silent option and various fixes.
  201 	* ifcpu.c32: Detect hypervisor presence.
  202 	* lua.c32: Add dhcp support and support for native Syslinux
  203 	  functions syslinux_config(), syslinux_ipappend_strings() and
  204 	  syslinux_reboot().
  205 	* isohybrid: Workaround for various EFI systems.
  206 	* pxechn.c32, a PXE NBP chainloader.  More versatile alternative
  207 	  to pxechain.com and resolves the PXELINUX -> WDS issue with
  208 	  Microsoft Windows Server 2008R2 (Gene Cumm).
  209 	* btrfs: Fix booting off of a subvolume.
  210 	* com32: Add device tree support.
  211 	* SYSLINUX: Fix relative paths for VFAT. The CONFIG and APPEND
  212 	  directives now support entirely relative paths.
  213 
  214 Changes in 4.05:
  215 	* HDT updated, and now supports uploading data to a TFTP
  216 	  server.
  217 	* ISOLINUX: remove the .img file support; it has been broken
  218 	  on virtually all systems since the beginning, and has been
  219 	  totally broken since 4.00 at least.  Use MEMDISK instead.
  220 	* chain.c32: Support chaining ReactOS' FreeLdr (Shao Miller)
  221 	* isohybrid: -m option to add support for Mac EFI booting.
  222         * ifmemdsk.c32: Choose boot option based on presence of
  223 	  MEMDISK.
  224 	* Remove bogus distributed mk-lba-img binary.
  225 	* The Syslinux project has a new, cool logo by Abi
  226 	  "ixxvil" Rasheed (doc/logo/*).
  227 
  228 Changes in 4.04:
  229 	* PXELINUX: Fix handling of unqualified DNS names.
  230 	* PXELINUX: Fix timer bug when PXELINUX might be unloaded
  231 	  (Gene Cumm).
  232 	* core/writedec.inc: Fix duplicate declaration and overflow
  233 	  (Gene Cumm).
  234 	* GCC 4.5 fixes.
  235 	* sample directory: Fix Makefile include (Gene Cumm).
  236 	* ver.com: New universal DOS/COMBOOT application to display
  237 	  version information (includes DRMK) (Gene Cumm).
  238 	* rosh.c32: updated; Using getopt() for internal commands to aid
  239 	  parsing options; Fix bugs in ls; add warm reboot and echo
  240 	  (Gene Cumm).
  241 	* com32: fix a file descriptor leak.
  242 	* gfxboot.c32: handle TEXT..ENDTEXT; error out on no LABELs
  243 	  found (Sebastian Herbszt).
  244 	* Fix booting on non-partitioned devices.
  245 	* MBR, isohybrid: Workaround for a BIOS issue on Acer
  246 	  Travelmate and possibly other machines.
  247         * COM32: Adding ACPI parsing libary
  248         * HDT: Release 0.4.1 to support ACPI parsing, 
  249           improved mutli-core/cpu reporting 
  250 	* LUA: Updating to 5.1.4-2
  251 	* SYSLINUX: core/diskstart.inc: Reset DS after checksum in case
  252 	  it isn't 0 (Gene Cumm).
  253 	* win64: Script update for additional mingw compiler names
  254 	  (Gene Cumm).
  255 	* diag: New directory for diagnostic-related tools.  Add a
  256 	  handoff MBR/VBR and geometry display images (Gene Cumm).
  257 	* MEMDISK: use "mem=" parameter to mark available memory above
  258 	  this point as reserved (core already does alignment) (Gene Cumm).
  259 	* MEMDISK: Additional disk probe checks and debug output
  260 	  (Shao Miller, Gene Cumm).
  261 	* gpxe: add gpxelinuxk.0, based off of undionly.kpxe + new
  262 	  script (Gene Cumm).
  263 	* isohybrid: install the isohdpfx*.bin/isohdppx*.bin files to
  264 	  make isohybrid images in one step with GNU xorriso.
  265 	* PXELINUX: disable a hack that would make localboot work on
  266 	  some machines, but break just about as many.  Some machines
  267 	  which worked with "localboot 0" in previous versions may
  268 	  need "localboot -1" in this one.  If you have a machine
  269 	  which requires "localboot -1", a copy of the dmidecode
  270 	  or sysdump output would be appreciated.
  271 	* Include a set of diagnostics by Gene Cumm.
  272 	* Fixes for gcc 4.6 and binutils 2.21.51.
  273 	* chain.c32: Allow "uuid" as a synonym to "guid".
  274 	* Handle directory names starting with .. for vfat and
  275 	  iso9660.
  276 	* New MENU HIDDENKEY command to provide a one-keystroke way to
  277 	  activate a boot option from a hidden menu intro screen.
  278 
  279 Changes in 4.03:
  280 	* Don't hang if no configuration file is found.
  281 	* Better support for booting from MBRs which don't pass
  282 	  handover information.
  283 	* EXTLINUX: Try to be smarter about finding the partition
  284 	  offset.
  285 	* chain.c32: support chainloading Dell Real Mode Kernel (Gene
  286 	  Cumm).
  287 	* chain.c32: fix booting in CHS mode.
  288 	* rosh.c32 updated (Gene Cumm).
  289 	* Fix the -s option to the syslinux/extlinux installer (Arwin
  290 	  Vosselman).
  291 	* isohybrid: fix padding of large images (PJ Pandit).
  292 
  293 Changes in 4.02:
  294 	* SYSLINUX: correctly handle the case where the -d option is
  295 	  specified with a non-absolute path, i.e. "syslinux -d
  296 	  syslinux" instead of "syslinux -d /syslinux".
  297 	* ISOLINUX: recognize the directory names /boot/syslinux and
  298 	  /syslinux, and the filename syslinux.cfg in addition to the
  299 	  isolinux-specific names.  Thus, "syslinux.cfg" is now a
  300 	  generic name, whereas "isolinux.cfg" or "extlinux.conf" is
  301 	  specific to different derivative.
  302 	* chain.c32: support setting alternate config filename for
  303 	  stage2 of GRUB Legacy (Gert Hulselmans).
  304 	* whichsys.c32: execute specific command, based on Syslinux
  305 	  bootloader variant (Gert Hulselmans).
  306 	* lua.c32: a lot of new bindings added to the "syslinux"
  307 	  namespace: VESA, PCI, DMI, kernel loading (Marcel Ritter).
  308 	* btrfs: print a comprehensive error message if compressed or
  309 	  encrypted files are encountered (neither is currently
  310 	  supported.)
  311 	* SYSLINUX: mtools installer: honor TMPDIR, error out on disk
  312 	  full.
  313 	* Handle fallbacks from EDD to CHS, to deal with systems which
  314 	  announce EDD support but don't actually have it.
  315 	* SYSLINUX: the mtools, DOS and win32 installers now use the new
  316 	  command line options.
  317 	* PXELINUX: fix the use of IP addresses in TFTP :: or tftp://
  318 	  host syntax.
  319 	* SYSLINUX: experimental Win64 installer (syslinux64.exe).
  320 
  321 Changes in 4.01:
  322 	* ISOLINUX: fix initialization on systems which don't zero
  323 	  low memory.
  324 	* SYSLINUX/EXTLINUX: fix handing of disk read retries in
  325 	  EDD mode.
  326 	* ISOLINUX: change the initialization sequence to avoid
  327 	  problems with certain (old) BIOSes.  Special thanks to
  328 	  Helmut Hullen for invaluable debugging support.
  329 	* ifplop.c32: new module which detects if the PLoP Boot Loader
  330 	  already has booted a CDROM or USB drive (Gert Hulselmans).
  331 	* Correct a severe memory overwrite bug, triggered primarily
  332 	  when selecting a very long command line in the menu system.
  333 	* lua.c32: Lua script interpreter, currently experimental
  334 	  (Alexey Zaytsev, Marcel Ritter, Geert Stappers).
  335 	* PXELINUX: new option IPAPPEND 4 to append the system UUID to
  336 	  the kernel command line.
  337 	* PXELINUX: display BOOTIF and SYSUUID at startup time, and
  338 	  when Ctrl-N is pressed on the command line.
  339 
  340 Changes in 4.00:
  341 	* Major code base changes; all filesystem rewritten in C.
  342 	  This work was done primarily by Liu Aleaxander (Yuanhan Liu).
  343 	* EXTLINUX: btrfs and ext4 support.  btrfs support was done by
  344 	  Alek Du of Intel.
  345 	* EXTLINUX is no longer a separate derivative; extlinux and
  346 	  syslinux both install the same loader (ldlinux.sys); for the
  347 	  Linux-based installers the extlinux binary is used for a
  348 	  mounted filesystem; the syslinux binary for an unmounted
  349 	  filesystem.
  350 	* When loading a new configuration file with the CONFIG
  351 	  command, one can now also specify a new current directory
  352 	  with an APPEND statement.
  353 	* Full ADV support for Syslinux, to boot-once and MENU SAVE
  354 	  works.
  355 	* Full support of GPT-partitioned disks, including disks
  356 	  and/or parititions larger than 2 TiB (if supported by BIOS.)
  357 	* The GPT handover protocol adjusted to the current T13
  358 	  committee draft; see doc/gpt.txt.
  359 	* HDT: code cleanup, small bugfixes
  360 	* The "linux" syslinux installer (syslinux-nomtools) now has a
  361 	  command-line syntax closer to the extlinux installer.  The
  362 	  mtools, dos and win32 installers will get this new syntax
  363 	  eventually, but it is not implemented yet.
  364 	* chain.c32: support booting GPT partitions by index, GUID, label.
  365 	* chain.c32: support booting the Syslinux partition with "fs".
  366 	* chain.c32: implement gpt.txt hand-over protocol.
  367 	* chain.c32: support for chainloading Grub stage 2.
  368 	* PXELINUX: TFTP URL syntax (tftp://) supported even when not
  369 	  running gPXE/gpxelinux.
  370 	* New ls.c32 module to display the contents of the disk from
  371 	  the command line, and pwd.c32 to display the current
  372 	  directory.
  373 	* rosh.c32 (read only shell) updated and hopefully usable.
  374 	* PXELINUX: Support "localboot -1", just like the other
  375 	  derivatives.
  376 	* gfxboot.com removed in favor of gfxboot.c32.
  377 	* New MENU HELP statement to display fullscreen help text as a
  378 	  result of a menu selection.
  379 	* memdiskfind utility that can be used with the phram driver
  380 	  in the Linux kernel to mount a memdisk.
  381         * ifcpu.c32: Adding usage when no parameters are given, 
  382           adding PAE support.
  383 	* ifcpu.c32, ifcpu64.c32: handle more than one argument per
  384 	  target.
  385 	* isohybrid: C version which does not require Perl.
  386 	* New command MENU IMMEDIATE to permit hotkeys to activate
  387 	  immediately without needing Enter.
  388 	* mdiskchk.com supports a --no-sequential (or -n) option to
  389 	  suppress the classic all-drive-probing heuristic.  Useful
  390 	  on BIOSes who crash/hang when certain drive numbers are
  391 	  probed.
  392 	* ElTorito.Sys DOS driver now scans drive numbers upwards
  393 	  instead of downwards, in order to avoid a fairly common
  394 	  bug on some BIOSes where probing drive 0xFF causes a
  395 	  failure.
  396 	* NASM 2.03 or later required to build.  2.07 or later
  397           recommended.
  398 
  399 Changes in 3.86:
  400 	* chain.c32: fix chainloading the MBR of a hard disk (broken
  401 	  in 3.85).
  402 	* mboot.c32: report the boot loader name in the information
  403 	  structure.
  404 	* com32: set argv[0] in a com32 module.
  405 	* core: add a workaround for a bug in Xen HVM older than
  406 	  version 3.3: disable halt on those platforms.
  407 	* Fix problems where certain operations in com32 modules would
  408 	  cause the core to believe the system was idle.
  409 	* MEMDISK: fix MBR detection when used with a DOSEMU header or
  410 	  an offset.
  411 	* MEMDISK: generate the mBFT checksum correctly.
  412 
  413 Changes in 3.85:
  414 	* gPXELINUX: updated to gPXE 1.0.0.  gPXELINUX can now do NBP
  415 	  chainloading, and does not require a second DHCP.
  416 	* vesamenu.c32: unbreak the default "grey hole" background.
  417 	* We no longer have a built-in default of "linux auto".
  418 	  Instead, if no DEFAULT or UI statement is found, or the
  419 	  configuration file is missing entirely, we drop to the boot:
  420 	  prompt with an error message (if NOESCAPE is set, we stop
  421 	  with a "boot failed" message; this is also the case for
  422 	  PXELINUX if the configuration file is not found.)
  423 	* chain.c32: support chainloading Grub4DOS; patch by Gert
  424 	  Hulselmans.
  425 	* New tool: sysdump.c32, can be used to produce system
  426 	  information for debugging via tftp or ymodem (serial port).
  427 	* "vga=current" on the Linux command line is now supported.
  428 	* chain.c32: support for Windows Recovery Console, via the
  429 	  "cmldr=" option.
  430 	* chain.c32: should now support loading NTLDR from different
  431 	  type media than loaded from.
  432 	* chain.c32: support chainloading to a FAT/NTFS partition with
  433 	  invalid "hidden sectors" via the "sethidden" option.
  434 	* memdisk: fix the mBFT ACPI table.
  435 	* vesamenu.c32: if the image is smaller than the screen, tile
  436 	  it across the whole screen.
  437 	* mkdiskimage: -s option for producing a sparse image.
  438 	* vesamenu.c32: support arbitrary resolution setting (beyond
  439 	  BIOS support) on some Intel-based video chipsets.  This code
  440 	  is a modified version of the "915resolution" tool by
  441 	  Steve Tomljenovic; your mileage might vary.
  442 	  
  443 Changes in 3.84:
  444 	* SYSLINUX: make the DOS installer work for MS-DOS 7.x/8.x
  445 	  (Win9x/ME) again.
  446 	* HDT: updated to version 0.3.6 (numerous changes.)
  447 	* mboot.c32: now supports video mode setting if requested by
  448 	  the image.
  449 	* MEMDISK: Fix floppy images of PC-DOS.
  450 	* MEMDISK: Add support for emulation of CD-ROM images; patch
  451 	  by Shao Miller.
  452 	* MEMDISK: Comply with the Win9x "safe hook" standard,
  453 	  allowing a protected-mode driver.
  454 	* MEMDISK: New "mBFT" ACPI table, by analogy with the iSCSI
  455 	  iBFT table.  This allows detection from a protected-mode
  456 	  operating system without EDD support.
  457 	* 32-bit version of the gfxboot loader (gfxboot.c32), so far
  458 	  experimental.  This will replace gfxboot.com in the future.
  459 	* vesamenu.c32: new MENU RESOLUTION directive to set a screen
  460 	  resolution other than 640x480.
  461 	* chain.c32: add support for loading isolinux.bin.
  462 	* chain.c32: make sure to always return to text mode.
  463 	* eltorito.sys: DOS driver for generic CD-ROMs; by Gary Tong
  464 	  and Bart Lagerweij.
  465 
  466 Changes in 3.83:
  467 	* PXELINUX: clear memory before handing over to a chainloaded
  468 	  NBP.  This may help avoid a bug in Windows RIS.
  469 	* PXELINUX: fix localboot after NBP chainloading on certain
  470 	  BIOSes (including ASUS A8N-E, but possibly others.)
  471 	* chain.c32: support chainloaded bootloaders on ISOLINUX.
  472 	* PXELINUX: allow filenames up to 251 characters.
  473 	* MEMDISK: fix problems booting from USB on Thinkpads, and
  474 	  possibly other machines or hardware combinations.
  475 	* isohybrid: fix the -id option.
  476 	* HDT: updated to version 0.3.4.
  477 	* MEMDISK: the stack size is now configurable, with the stack=
  478 	  option.
  479 	* Simple menu: fix Ctrl-W (word erase) in command-line edit.
  480 	* Simple menu: fix crash on some platforms.
  481 	* Gfxboot: fixes to the configuration file parsing.
  482 	* PXELINUX: add a tool to override specific DHCP options via
  483 	  values hardcoded in the pxelinux.0 file.  These hardcoded
  484 	  values can be either "before DHCP" (defaults if DHCP do not
  485 	  provide values), or "after DHCP" (overrides DHCP).  The tool
  486 	  pxelinux-options can be used to set these options.  This
  487 	  feature does not apply to gpxelinux.0; when used with gPXE
  488 	  this is better handled by modifying the embedded script.
  489 
  490 Changes in 3.82:
  491 	* isohybrid: fix the -partok logic for loading from a partition.
  492 	* ISOLINUX: deal with systems which return from INT 13h with
  493 	  interrupts disabled.
  494 	* Do not invoke the idle handler during large file loads.
  495 	* Simple menu: make ONTIMEOUT work with MENU HIDDEN.
  496 	* PXELINUX: handle TFTP servers which have extra NULs at the
  497 	  end of an OACK packet.
  498 
  499 Changes in 3.81:
  500 	* Shuffler: fix bug in real-mode entry.  This affected a
  501 	  number of modules, probably in relatively unimportant ways,
  502 	  but it completely broke linux.c32.
  503 	* Improved performance.
  504 	* Attempt to halt the processor while idle.  This can cause
  505 	  bad reponsiveness when using a serial console especially for
  506 	  automated input; if that ends up being a problem, use the
  507 	  new "NOHALT 1" configuration command.
  508 	* linux.c32 now suppresses all messages if the "quiet" flag is
  509 	  specified.
  510 	* isohybrid: add a variety of options, and a help message.
  511 	* ISOLINUX: fix booting in hybrid mode when CBIOS is used.
  512 	  This unfortunately means that the isohybrid handoff protocol
  513 	  has changed, so the isohybrid utility must version-match
  514 	  isolinux.bin.
  515 	* Drop support for ACPI 3 extended memory flags.
  516 	* Menu system: don't set the autocr flag on the serial
  517 	  console.
  518 	* altmbr: fix handling of logical partitions.
  519 	* altmbr: cap at 439 bytes so the partition select byte isn't
  520 	  part of the file.
  521 
  522 Changes in 3.80:
  523 	* New shuffler mechanism and API.
  524 	* Rewritten mboot.c32 module.
  525 	* The syslinux_boot_linux() function has been simplified.
  526 	* Don't hang trying to boot a "menu quit" label from the CLI.
  527 	* Fix problem with boot-once "sticking" on some BIOSes.
  528 	* isohybrid: fix problem with images over 2 GB in size.
  529 	* APM poweroff module (poweroff.com) by Sebastian Herbszt.
  530 	* ISOLINUX: fix the handling of large directories.  Bug found
  531 	  and fixed by Steffen Winterfeldt.
  532 
  533 Changes in 3.75:
  534 	* PXELINUX: fix the "keeppxe" option, which was broken in
  535 	  3.74.
  536 	* MEMDISK: correct the extraction of geometry information from
  537 	  the MBR of a hard disk image, again broken in 3.74.
  538 	* extlinux(1) man page from Brian Pellin.
  539 	* Simple menu: MENU SAVE is now controllable on a menu-by-menu
  540 	  or entry-by-entry basis.
  541 	* gPXELINUX: fix interrupt-disabling bug.
  542 	* HDT: fix lockup on machines with certain PCI configurations.
  543 
  544 Changes in 3.74:
  545 	* New UI directive, which allows a more natural way to specify
  546 	  a menu system (or not.)  With the UI directive specifying
  547 	  the menu system, the DEFAULT directive can be used to select
  548 	  the default entry inside the menus.
  549 	* kbdmap.c32: new module to load a new keyboard map
  550 	  dynamically.
  551 	* isohybrid: workaround bug in some versions of binutils.
  552 	* Fix issue with the placement of the initrd on some machines.
  553 	* ifcpu64: fix handling of less than three arguments.
  554 	* Fix bug in the shuffle library when dealing with a very
  555 	  large number of fragments.
  556 	* Documentation fixes by Vicente Jimenez Aguilar.
  557 	* gPXE updated to version 0.9.7.
  558 	* hdt.c32: Hardware Detection Tool, an interactive hardware
  559 	  analyzer module by Erwan Velu.
  560 	* MEMDISK: enable automatic determination of the disk geometry
  561 	  for a large floppy disk image if (and only if) it is
  562 	  formatted with a FAT filesystem.
  563 	* SYSLINUX: fix the handling of .bss files on FAT12/16.
  564 	* Suppress the Loading ... message if "quiet" is specified on
  565 	  the kernel command line.
  566 	* Fix the use of "CONSOLE 0" with menu.c32.
  567 	* Allow COM32 modules to be aware of all memory even in the
  568 	  presence of a memory hole.  The "linux.c32" module can be
  569 	  used to load a kernel (or memdisk) plus large initrd on
  570 	  such a system.
  571 	* MBR: produce alternate MBR variants which force the drive
  572 	  number to hd0 (_f variants), or force the drive number to
  573 	  hd0 if the Ctrl key is pressed (_c variants.)  Furthermore,
  574 	  add an MBR variant (altmbr*.bin) which ignores the active
  575 	  flag and instead boots the partition number specified in the
  576 	  byte at offset 439 decimal.
  577 	* Add IPAPPEND strings to com32 modules, especially needed for
  578 	  linux.c32.
  579 	* New MENU SAVE directive which saves the latest menu
  580 	  selection until the next boot.  Currently only implemented for
  581 	  EXTLINUX.
  582 	* gfxboot.com: *experimental* interface module to Steffen
  583 	  Winterfeldt's "gfxboot" graphical front end
  584 	  (http://gfxboot.sourceforge.net/).  Module by Sebastian Herbszt.
  585 
  586 Changes in 3.73:
  587 	* Upgrade gPXE to release version 0.9.5.
  588 	* Fix a number of build errors on various platforms.
  589 	* Handle systems with E820 "extended attributes" per ACPI 3.
  590 	  Someone "cleverly" decided to change the E820 spec in a
  591 	  backwards-incompatible manner!
  592 	* MEMDISK: default to "safeint".
  593 	* Adopt the moniker "The Syslinux Project", standard proper
  594 	  noun capitalization, to refer to the project as a whole.
  595 	  Thus, reserve the all-caps "SYSLINUX" to refer to the FAT
  596 	  loader.
  597 	* mboot.c32: add "-solaris" option to pass DHCP information to
  598 	  the Solaris kernel; required for automatic Solaris boot
  599 	  without using Solaris' pxeboot program.
  600 	* config.c32: trivial COM32 module to restart Syslinux with
  601 	  another configuration file from the command line (equivalent
  602 	  to the CONFIG command in the configuratin file.)
  603 
  604 Changes in 3.72:
  605 	* Include the pxechain.com module from Jeffery Hutzelman at
  606 	  Carnegie Mellon University.  This allows chaining another
  607 	  PXE boot program while changing the DHCP packet passed to
  608 	  it.
  609 	* Reorganize the Makefile system.
  610 	* Major PCI core cleanups and other source cleanup.
  611 	* gPXE code updated.
  612 	* Try to avoid memory-snooping attacks on passwords.  Note
  613 	  that if someone has root on the box, they generally don't
  614 	  need to compromise the boot loader...
  615 	* ISOLINUX: fix crash when given a zero-length file.
  616 	* sdi.c32: support gzipped SDI images.
  617 	* ISOLINUX: support generating images which can be either
  618 	  a CD-ROM or a hard disk (USB disk, etc.)  See
  619 	  doc/isolinux.txt for more information.
  620 	* Remote gdb support for COM32 modules; patch from Stefan
  621 	  Hajnoczi.
  622 	* Support beeps in F-key help in the simple menu system.
  623 	* Tab display of labels, based on a patch from Sebastian
  624 	  Herbszt.  Can be disabled with the NOCOMPLETE configuration
  625 	  command.
  626 	* "menu default" can now be specified after "menu begin", to
  627 	  indicate that a specific submenu should be the default entry.
  628 
  629 Changes in 3.71:
  630 	* Workaround for a VESA BIOS which tries to make DOS system
  631 	  calls(!!)
  632 	* Simple menu: fix navigation around disabled entries
  633 	  (or at least try to...)
  634 	* EXTLINUX: proper error message when confused about mount
  635 	  point.
  636 	* MEMDISK: be smarter about incompletely disabled floppies in
  637 	  the BIOS and about being the only floppy.
  638 	* Optionally allow initrd to be specified on a separate line
  639 	  rather than as part of the "append" line.  This is not
  640 	  recommended, but apparently makes life easier for some
  641 	  tools.
  642 	* SYSLINUX: if no config file is present, set the current
  643 	  directory to the root directory (Sebastian Herbszt).
  644 	* chain.c32: option "hide" to support hiding and unhiding of
  645 	  primary partitions on the boot drive with DOS, Win, or OS/2
  646 	  partition types (01, 04, 06, 07, 0b, 0c, 0e).
  647 	* Unbreak the KBDMAP command (broken in 3.70).
  648 	* EXTLINUX: fix the handling of the ADV when using CBIOS.
  649 	* ifcpu64.c32: simple COM32 module to select a 32- or 64-bit
  650 	  kernel (and optionally 32-bit kernels with or without PAE.)
  651 	  Eventually we want a scripting language for this
  652 	  kind of stuff; a Lua module is under development.
  653 	* Fix parsing of the SERIAL command without a baud rate
  654 	  specified.
  655 	* chain.c32: error out when try to boot an unbootable
  656 	  partition.
  657 	* SYSLINUX: when building the Win32 installer, search for
  658 	  MinGW under a large number of possible names.
  659 
  660 Changes in 3.70:
  661 	* PXELINUX: Support enhanced capabilities when running on top
  662 	  of gPXE (http://www.etherboot.org/).  In particular, support
  663 	  URL-style syntax for filenames, and any protocol that gPXE
  664 	  supports (except, currently, iSCSI and AoE.)  This feature
  665 	  is currently highly experimental.
  666 	* Substantial infrastructure changes to support files whose
  667 	  length aren't known at open time (typically network
  668 	  connections.)  Please note that the semantics of some of the
  669 	  comboot APIs have changed slightly; please see doc/comboot.txt.
  670 	* PXELINUX: We no longer require a TFTP server which supports
  671 	  the tsize option for all transfers.
  672 	* PXELINUX: Integrate with the gPXE source base; unified image
  673 	  now included as "gpxelinux.0".
  674 	* The source tree has been restructured; files that were
  675 	  previously in the root have moved into the core, dos, gpxe,
  676 	  and utils directories.
  677 	* "make install", "make netinstall", and "make extbootinstall"
  678 	  have been updated massively.  "make install-all" now installs
  679 	  all three.
  680 	* Change default dir for auxiliary files from
  681 	  /usr/lib/syslinux to /usr/share/syslinux.
  682 	* SYSLINUX: VFAT long filename support.
  683 	* MEMDISK: Any image less than 4096K (4 MB) is treated as a
  684 	  floppy disk.  The geometry-guessing code will recognize all
  685 	  common extended formats, but it is still possible some very
  686 	  exotic formats need geometry specification.  Large floppies
  687 	  and very small harddisks still need explicit specification.
  688 	* chain.c32: option "swap" to support swapping of BIOS drive
  689 	  numbers.  This is necessary to boot certain operating systems
  690 	  (DOS, Windows) from a secondary drive.
  691 	* chain.c32: option "file=" to support loading a boot file from
  692 	  the SYSLINUX filesystem instead of loading the boot sector
  693 	  from the drive.
  694 	* chain.c32: option "seg=" to control the load location.
  695 	* chain.c32: option "ntldr=" as a shorthand for "seg=0x2000
  696 	  file="; use this to load one of WinNT's loaders:
  697 
  698 	  chain.c32 hd0 1 ntldr=/MiniNT/setupldr.bin
  699 
  700 	  Note that the file needs to be in the SYSLINUX filesystem.
  701 	* chain.32: options "freedos=" and "msdos="/"pcdos=" as
  702 	  shorthands for "seg=0x60 file=" and "seg=0x70 file="
  703 	  respectively; use this to load FreeDOS's kernel.sys, MS-DOS's
  704 	  io.sys or PC-DOS's ibmbio.sys.
  705 	* Change to the A20 algorithm which *MIGHT* help systems that
  706 	  have systems which freeze when Syslinux is used with USB
  707 	  keyboards.  Note that this has been hard do verify, so I
  708 	  would greatly appreciate feedback on it.
  709 	* Complex menu system: unbreak menus which has unnamed
  710 	  submenus, like complex.c.
  711 	* Fix newline on the serial port for some com32 modules.
  712 	* chain.c32: support "boot" as the drive specification,
  713 	  indicating the drive from which it was booted
  714 	  (for syslinux/extlinux).
  715 	* SYSLINUX/EXTLINUX: support "localboot" with the same feature
  716 	  set as ISOLINUX.
  717 	* Add an experimental MBR for GPT partition tables.
  718 	* Use $(CC) when determining compile flags.
  719 	* chain.c32: fix booting from logical partitions (Sergey
  720 	  Vlasov.)
  721 
  722 Changes in 3.63:
  723 	* Fix errors in the PCI and DMI detection modules (Erwan Velu,
  724 	  Sebastian Herbszt).
  725 	* Fix host dependencies and other issues in the build system.
  726 	* PXELINUX: Allow class E addresses as unicast.
  727 	* sdi.c32: module to load Microsoft System Deployment Images.
  728 	  For additional information, please see:
  729 	    http://msdn2.microsoft.com/en-us/library/ms838543.aspx
  730 	* EXTLINUX: Correct reading directories with deleted entries.
  731 	* Shuffle library: correct the handling of certain geometries
  732 	  (an upward move with source material blocking the move); as
  733 	  required by sdi.c32 but theoretically possible for other
  734 	  formats as well.
  735 	* Add "make netinstall" to install /tftpboot.
  736 	* Fix some documentation files that didn't get moved/renamed.
  737 
  738 Changes in 3.62:
  739 	* Clean up garbage after "aborted." message.
  740 	* Clean up memdump.com filenames.
  741 	* Support SHA256 and SHA512 encrypted passwords.
  742 	* The shuffle library now can generate chained descriptors,
  743 	  thus allowing pretty much arbitrarily complex memory maps.
  744 	* Handle command lines up to 2047 characters, the current
  745 	  Linux kernel limit.
  746 	* vesamenu: support systems without linear framebuffer support
  747 	  (sigh, what is this, 1993?) and 15-bit RGB modes.
  748 	* Move the label storage (for the command-line interface) to
  749 	  high memory, removing the size limit and freeing up 64K of
  750 	  low memory.
  751 	* Get rid of 4096-entry limit in the simple menu system.
  752 	* New hierarchial submenu support: see MENU BEGIN, MENU END,
  753 	  MENU GOTO in doc/menu.txt.
  754 	* MENU QUIT allows creating a menu entry for returning to the
  755 	  command line.
  756 	* ISOLINUX: Work around bug in certain Adaptec BIOSes,
  757 	  patch by Bruce Robson.
  758 	* pngtopnm dependency removed from samples/ directory.
  759 	* Text documentation files (in doc/) renamed *.doc -> *.txt.
  760 
  761 Changes in 3.61:
  762 	* EXTLINUX: fix crash when accessing an empty file.
  763 	* elf.c32: If a PHDR segment is present, load it.
  764 	* Fix SHA-1 and MD5 passwords.
  765 	* ISOLINUX: fix booting when mastered without
  766 	  mkisofs -boot-info-table (broken since 3.50, sigh...)
  767 	* Handle BIOSes which emit multiple contiguous valid
  768 	  memory regions in the e820 map.
  769 
  770 Changes in 3.60:
  771 	* Support for "auxilliary data vector", a small amount of
  772 	  writable storage.  Currently only supported for EXTLINUX,
  773 	  but the infrastructure is there for the other derivatives,
  774 	  assuming a suitable storage location can be found.
  775 	* EXTLINUX: boot-once support (--once, --clear-once, and
  776 	  --reset-adv).
  777 	* A command is now required to the EXTLINUX installer, i.e. at
  778 	  least one of --install, --update, --once, --clear-once, or
  779 	  --reset-adv.
  780 
  781 Changes in 3.55:
  782 	* PXELINUX: as per RFC 5071, PXELINUX no longer requires the
  783 	  use of the magic cookie option (208) for unencapsulated
  784 	  options.  Currently it does not require it for
  785 	  vendor-encapsulated options (vendor-option-space) either,
  786 	  but that MAY be reverted in the future if it causes
  787 	  problems.
  788 	* Documentation text files moved to a common "doc" directory;
  789 	  man pages from the Debian project added to the "man"
  790 	  directory.
  791 	* Correct bug with self-overlapping memory areas when using
  792 	  the shuffle interface.
  793 
  794 Changes in 3.54:
  795 	* Add "menu separator", "menu indent", "menu disabled"
  796 	  (see README.menu).
  797 	* vesamenu: fix handing of VESA modes with noncontiguous
  798 	  memory buffers.  In particular, Qemu/KVM sets up such a mode
  799 	  when Cirrus Logic emulation is enabled (which is the
  800 	  default.)
  801 	* Support for calling real mode functions using far calls,
  802 	  with argument on the stack.  This was implemented to support
  803 	  the BIOS BBS specification, but subsequent experiments show
  804 	  that the at least one of the most common BIOS cores, Award,
  805 	  passes the presence check but doesn't actually implement the
  806 	  functionality.
  807 
  808 Changes in 3.53:
  809 	* Fix bugs related to the $PnP BIOS functionality on some
  810 	  platforms.
  811 	* PXELINUX: Fix the "naked" version of :: (suppress prefix.)
  812 	* elf.c32: better error messages.
  813 	* Faster operation under Intel VT virtualization.
  814 	* PXELINUX: Fix DHCP bootfile option.
  815 	* mkdiskimage: Support more than 1024 cylinders.
  816 	* (Hopefully) fix installer on non-x86 platforms.
  817 	* Fix shuffle_and_boot_rm, used by linux.c32.
  818 	* Fix shuffle_and_boot_pm on 386/486.
  819 	* ISOLINUX (at least): fix bss memory overwrite hang.
  820 	* MBR: Fix booting from logical partitions.
  821 	* Code cleanups.
  822 
  823 Changes in 3.52:
  824 	* Handle capitalized F-key commands in the menu system.
  825 	* Fix padding error when loading multiple ramdisks.
  826 	* Workaround for VMware crashing when trying to print a
  827 	  message during early kernel boot (does not seem to work,
  828 	  consider deleting.)
  829 	* chain.c32: add the ability to search for a specific MBR
  830 	  signature at runtime.
  831 	* Fall back to the server identity option if the siaddr field
  832 	  in the DHCP header isn't set.  This seems to match the
  833 	  behaviour of most PXE stacks.
  834 	* mkdiskimage: give the generated disk image an MBR signature.
  835 	* MEMDISK: Fix failures on some BIOSes.
  836 	* Simple menu system: new "MENU HIDDEN" option to not display
  837 	  the menu unless the user presses a key.
  838 	* Simple menu system: support MD5-encrypted passwords (modern
  839 	  Unix standard style, with "$1$" prefixes.)
  840 	* pcitest.c32: now functions as a full "lspci".  Thanks to
  841 	  Erwan Velu for this work.
  842 	* MEMDISK: Make EDD actually work.
  843 	* ISOLINUX: Fix for certain broken CD-ROM BIOSes which
  844 	  randomly corrupted register FS.
  845 	* Simple menu system: fix memory overwrite bug that caused
  846 	  some systems to lock up or behave weirdly.
  847 	* Fix building on 64-bit systems without a 32-bit libc installed.
  848 
  849 Changes in 3.51:
  850 	* EXTLINUX: Fix failure to find the configuration file.
  851 
  852 Changes in 3.50:
  853 	* New keywords allow the type of file to be specified in the
  854 	  configuration file.
  855 	* It is now supported to load a different configuration file
  856 	  with the CONFIG keyword.
  857 	* Fix API call 0x0019 (Read Disk.)
  858 	* MENU AUTOBOOT, MENU TABMSG, MENU PASSPROMPT allows
  859 	  internationalization of menu messages.
  860 	* A new feature, TEXT HELP, allows the administrator to set
  861 	  a multi-line help message for individual selections.
  862 	* Fix API call 0x0012 (Cleanup, shuffle and boot.)
  863 	* New API call "Cleanup, shuffle and boot to flat protected mode"
  864 	* New API call "Cleanup, shuffle and boot to real mode",
  865 	  similar to API call 0x0012 but allows arbitrary register setting.
  866 	* Introduce a library interface for loading arbitrary binary
  867 	  formats with relatively easily understood code.  See
  868 	  the elf.c32 module for an example on how to use it.
  869 	* New module "elf.c32", to load a protected-mode ELF kernel.
  870 	* MBR (old and new): Fix bug in CHS mode when LBA >
  871 	  65535*sectors.
  872 	* vesamenu: fix decoding of palettized PNG images.
  873 	* Update the Linux kernel boot protocol.
  874 	* PXELINUX: Press Ctrl-N at the boot prompt to read out the
  875 	  network info.
  876 	* Instead of the (non-existent) MAC, use the client identifier
  877 	  for networks like Infiniband and Firewire/1394.
  878 	* Add a new INCLUDE command to the core syslinux parser.
  879 	* Allow binding help text to F11 and F12.
  880 	* F-key help now available in the simple menu system.
  881 	* Disabled the polling for ARP during idle.  It is simply too
  882 	  slow on some (broken!) PXE stacks.
  883 	* PXELINUX: also try to fetch the config file based on UUID.
  884 	* SYSLINUX/EXTLINUX: New RAID mode (-r) which calls the BIOS
  885 	  to load the next device (typically the next drive) on boot
  886 	  failure.
  887 
  888 Changes in 3.36:
  889 	* MEMDISK: Disable EDD by default on floppy disks.  EDD can be
  890 	  enabled with the "edd" option and disabled with "noedd".
  891 	  This (hopefully) should make Ghost work again.
  892 	* SYSLINUX: "unix" installer now uses Linux ioctls instead of
  893 	  using libfat.
  894 	* New MBR which can boot from logical partitions.
  895 	* SYSLINUX: Fix bug in detecting special extensions which was
  896 	  introduced in 3.35 :(
  897 	* PXELINUX: Unbreak chainbooting FreeBSD (and possibly others.)
  898 
  899 Changes in 3.35:
  900 	* MEMDISK: New "safeint" mode.
  901 	* MEMDISK: Be more compliant with the PnP BIOS spec.
  902 	* MEMDISK: Turn on EDD support by default.
  903 	* MEMDISK: Try to work on some machines on which it would not
  904 	  work when there was no floppy drive in the system.
  905 	* Simple menu system: fix serial console support (broken in
  906 	  3.30).
  907 	* SYSLINUX: Support subdirectories.  Like ISOLINUX, the
  908 	  "current directory" is the directory in which syslinux.cfg
  909 	  is found; this is searched for in the sequence
  910 	  /boot/syslinux, /syslinux, /.  As a side benefit, label names
  911 	  like "linux-2.6.18" and "linux-2.6.19" are now supported.
  912 
  913 	  To install ldlinux.sys in a subdirectory, pass the -d
  914 	  directory option to the SYSLINUX installer.
  915 
  916 	  This work was sponsored by slax.org (thanks, Tomas!)
  917 	* New API call: read disk.
  918 	* Invoke ONERROR on initrd load failure.
  919 
  920 Changes in 3.31:
  921 	* The simple menu system (menu.c32 and vesamenu.c32) now
  922 	  support loading more than one configuration file at a time,
  923 	  using MENU INCLUDE or by specifying multiple filenames.
  924 	* The MENU COLOR statement can now control the shadowing mode.
  925 
  926 Changes in 3.30:
  927 	* libcom32 extended to support graphics mode and graphical console.
  928 	* vesamenu.c32, new graphical version of the Simple
  929 	  Menu System, see README.menu.
  930 	* New com32 modules by Erwan Velu do selection based on CPUID
  931 	  or PCI devices present.
  932 	* RPM spec: add syslinux-tftpboot module; move syslinux by
  933 	  default to the /usr/share/syslinux directory.
  934 	* RPM spec: extlinux is now a separate package.
  935 
  936 Changes in 3.20:
  937 	* EXTLINUX: New options --install (-i) and --update (-U), to
  938 	  make it clear if a boot loader should be installed or
  939 	  updated.  For now, defaults to --install for compatibility;
  940 	  a future version will require one of these options.
  941 	* New library functions to load and place files in memory.
  942 	* mboot.c32 bug fixes.
  943 	* Remove 8 MB kernel size restriction.
  944 	* Add "klibc" target for building unix/syslinux and
  945 	  extlinux/extlinux with klcc (klibc-1.4.27 or later.)
  946 	* PXELINUX: Fail (and eventually reboot) if no configuration
  947 	  file was found.
  948 	* COM32 module by Erwan Velu to make decisions based on DMI
  949 	  info.
  950 	* Fix issue where going back and forth between menus a lot
  951 	  would cause a hang.
  952 	* ISOLINUX: Fix bug which made "cd boot sectors" not work.
  953 
  954 Changes in 3.11:
  955 	* MEMDISK: Fix bug by which accessing the real floppy disk
  956 	  as B: in MS-DOS was broken.
  957 	* Simple menu system: allow tweaking of the screen layout.
  958 	* Simple menu system: better command-line editing, correctly
  959 	  handle command lines above 256 characters.
  960 	* PXELINUX: revert memory allocation change that caused
  961 	  problems on some network cards.
  962 	* MEMDISK: Try work around a bug on some BIOSes when no
  963 	  physical floppy disk is present in the system.
  964 	* Enable the 16550A FIFOs, if present, when doing serial
  965 	  console.
  966 	* New "totaltimeout" command establishes a timeout without
  967 	  regard for any user input.
  968 	* Simple menu system: timeout behaviour now more in line with
  969 	  user expectations.
  970 	* Simple menu system: "ontimeout" should now work correctly.
  971 
  972 Changes in 3.10:
  973 	* gcc 4.0.1 compilation fixes.
  974 	* Add support for querying the PCI BIOS in libcom32
  975 	  (used by ethersel et al.)
  976 	* Fix PCI handing (ethersel etc) on several old chipsets (and
  977 	  VMWare.)
  978 	* Try to deal with systems with broken EBIOS.
  979 	* New API call to do "localboot".
  980 	* New API call to query features.
  981 	* New API call to run kernel image, a lower-level call than
  982 	  "run command".  See comboot.doc.
  983 	* Fix for bug in EBIOS code discovered by Arwin Vosselman.
  984 	* NOESCAPE security fix.
  985 	* Comments are now recognized even without a space following #.
  986 	* Fix incorrect handling of mixes of entries with and without
  987 	  MENU PASSWD.
  988 	* The idle API call now harmlessly returns failure if it is a
  989 	  no-op.  That way the caller can decide whether or not to
  990 	  bother invoking it again.
  991 	* Temporarily disable the idle API call on PXELINUX, due to
  992 	  some platforms on which the idle API call seems to hang; this
  993 	  problem has not yet been debugged.
  994 	* MEMDISK: the handling of DOSEMU-headered images was broken;
  995 	  fix it.
  996 	* EXTLINUX: symlinks are now supported.
  997 	* Simple menu system: N and P now work correctly as hotkeys.
  998 	* MEMDISK: more BIOS bug workarounds.
  999 
 1000 Changes in 3.09:
 1001 	* gcc4 compilation fix.
 1002 	* <BEL> (Ctrl-G) in message files now causes a beep.
 1003 	* Reduce the command line to 511 characters; 1023 caused
 1004 	  memory overflows.
 1005 
 1006 Changes in 3.08:
 1007 	* SYSLINUX: Fix performance regression (-s mode always
 1008 	  enabled.)
 1009 	* Add API function for idle loop.
 1010 	* libutil: Add do_idle() function for idle loop, make
 1011 	  get_key() use it.
 1012 	* libutil: Add SHA-1 and base64 functions.
 1013 	* Simple menu system: add password support.
 1014 	* EXTLINUX: Sparse files now handled correctly.
 1015 	* EXTLINUX: Large directories now handled correctly.
 1016 	* ALL: At the prompt, Ctrl-X now forces text mode.
 1017 	* Fix configuration file parsing error, that could cause
 1018 	  hangs.
 1019 	* Rewritten advanced menuing system from Murali Ganapathy.
 1020 	* MEMDISK: New "bigraw" mode to work around certain broken
 1021 	  BIOS flash programs.
 1022 	* COM32 module to boot Multiboot systems, including Xen.  See
 1023 	  com32/modules/mboot.doc.
 1024 	* Max command line changed to 1023 characters.  Note that the
 1025 	  kernel proper still can only handle 255 characters without
 1026 	  patching, and COM16 binaries can only handle 125 characters.
 1027 
 1028 Changes in 3.07:
 1029 	* Fix chainloading (chain.c32).
 1030 	* Fix zlib build problem.
 1031 	* Use a private copy of <linux/ext2_fs.h>.
 1032 
 1033 Changes in 3.06:
 1034 	* Fix typo that caused the ramdisk to load in the wrong place.
 1035 
 1036 Changes in 3.05:
 1037 	* New API function "shuffle and boot"; allows COM32 modules to
 1038 	  load or construct (almost) arbitrarily complex objects,
 1039 	  e.g. a kernel and its initrd/initramfs in pieces, and have
 1040 	  the API core reorganize memory for booting.  (A library API
 1041 	  for this function will be introduced in a later version.)
 1042 	* The initrd= option now supports multiple filenames separated
 1043 	  by commas.  This is mostly useful for initramfs, which can
 1044 	  be composed of multiple separate cpio or cpio.gz archives.
 1045 	  (Note: all files except the last one are zero-padded to a 4K
 1046 	  page boundary.  This should not affect initramfs.)
 1047 	* EXTLINUX: Fix API function 000Ah (get derivative-specific
 1048 	  info).
 1049 	* libcom32/ethersel: Support PCI Config Mechanism #2 on
 1050 	  machines still infested with that hideous old hack.
 1051 	* SYSLINUX: Fix directory-parsing bug.
 1052 
 1053 Changes in 3.02:
 1054 	* SYSLINUX: The "unix" installer now sets the MS-DOS
 1055 	  attributes (hidden, system, readonly.)
 1056 	* COM32 library: build the .lnx (test modules for running
 1057 	  under Linux) as architecture native modules, in case
 1058 	  i386 devel libraries aren't installed.
 1059 	* EXTLINUX: Hack for systems which don't have BLKGETSIZE64
 1060 	  defined in the standard header files.
 1061 	* Simple menu system: minor aestetic improvements, and try to
 1062 	  work better over a serial console (speed, and readability on
 1063 	  monochrome terminal emulators.)
 1064 	* New CONSOLE directive to control output on the video console
 1065 	  (useful for dealing with some broken serial-forwarding
 1066 	  BIOSes.)
 1067 	* New com32 module "ethersel" for searching for an Ethernet
 1068 	  card and selecting the proper version of Etherboot.
 1069 	* EXTLINUX: Allow the user to override the detected geometry.
 1070 	  Add help.
 1071 
 1072 Changes in 3.01:
 1073 	* EXTLINUX, SYSLINUX: Fix compile errors on some systems.
 1074 	* EXTLINUX: Default to zipdrive geometry (64 heads, 32
 1075 	  sectors) if no other geometry can be detected.
 1076 
 1077 Changes in 3.00:
 1078 	* SYSLINUX: Support FAT32 and EDD.  As an unfortunate
 1079 	  consequence, LDLINUX.SYS is no longer an ordinary file; it
 1080 	  is block-mapped at install time, which means it can only be
 1081 	  written using the syslinux installers.
 1082 	* SYSLINUX: Reorganize the source code for the installers;
 1083           each one of the installers (dos, win32, unix, mtools) is now
 1084           built in its own subdirectory.  In particular, "mtools" is
 1085 	  the unprivileged installer which uses mtools; "unix" is the
 1086 	  privileged installer which uses system calls.
 1087 	* SYSLINUX: Completely rewritten DOS installer in C.
 1088 	* ALL: "label" statement information is now stored in a
 1089 	  compressed format, which means that a lot more labels are
 1090 	  permitted (500-1000 in a typical configuration, but depends
 1091 	  on the complexity.)
 1092 	* EXTLINUX: New derivative, which boots from an ext2/ext3
 1093 	  filesystem.
 1094 	* SYSLINUX: The DOS and Win32 installers can now optionally
 1095 	  write the boot sector to a file instead of the real boot
 1096 	  sector.  This is not supported in the Linux installers,
 1097 	  however.
 1098 	* ALL: New NOESCAPE command, disables the "hold down the Shift
 1099 	  key to display the prompt" behaviour.
 1100 	* New simple menu system, as an alternative to the advanced
 1101 	  menu system already present.  See README.menu for details.
 1102 	* PXELINUX: Filenames can now be prefixed with an IP address
 1103 	  or DNS name plus :: (e.g. 192.0.2.1::filename or
 1104 	  server.domain.com::filename), which downloads a file from an
 1105 	  alternate TFTP server, or just a :: (e.g. ::filename), which
 1106 	  suppresses the common pathname prefix.  See pxelinux.doc.
 1107 	* SYSLINUX: Add an -m option to the DOS and Win32 installers
 1108 	  to write an MBR and -a to mark the partition SYSLINUX is
 1109 	  being installed on active.
 1110 	* MEMDISK: Give a way to query the boot loader type while
 1111 	  running MEMDISK; see memdisk/memdisk.doc and
 1112 	  sample/mdiskchk.c.
 1113 	* mkdiskimage: substantially improved mkdiskimage which, among
 1114 	  other things, can now be used to initialize USB keys as
 1115 	  zipdrives; see README.usbkey for more information.
 1116 
 1117 Changes in 2.13:
 1118 	* MEMDISK: Fix command-line parsing "brown paper bag" class
 1119 	  bug.
 1120 	* MEMDISK: Add "raw" mode to support the DOS boot disk from
 1121 	  WinME/XP, which seems to deliberately crash the system
 1122 	  when someone uses the "INT 15h mover" highmem API.
 1123 	* Make "make install" do something sane for the com32
 1124 	  development environment.
 1125 	* In the spec file, create a separate -devel RPM for the com32
 1126 	  development environment.
 1127 
 1128 Changes in 2.12:
 1129 	* Simple C library, based on klibc, for writing COM32
 1130 	  programs.
 1131 	* Fix the handling of file length in loading of COM32
 1132 	  programs.
 1133 	* MEMDISK: Work around a linker bug by rearranging the code to
 1134 	  not use the linker for the 16-bit code.
 1135 	* SYSLINUX: If we're building on a machine without a Win32
 1136 	  (mingw) compiler, just skip building syslinux.exe.
 1137 	* ISOLINUX: Support non-mkisofs mastering programs, at least
 1138 	  as long as the image is single-session.  For best results,
 1139 	  ISOLINUX should be the only boot loader installed.
 1140 	* MEMDISK: Allow the user to specify that the simulated disk
 1141 	  should be write-protected.
 1142 
 1143 Changes in 2.11:
 1144 	* ALL: Add an API call to get the configuration file name.
 1145 	* SYSLINUX: Fix bug in 2.10 that prevented it from working
 1146 	  correctly for a lot of people.
 1147 	* SYSLINUX: In the installer, make mtools a bit less fussy.
 1148 	* Make the menu system compile with newer gcc's.
 1149 
 1150 Changes in 2.10:
 1151 	* MEMDISK: Handle images compressed with zip as well as with
 1152 	  gzip.  Some Windows-based image tools apparently generate
 1153 	  these kinds of images by default.  Patch by Patrick
 1154 	  LoPresti.
 1155 	* Major menu improvement from Murali Ganapathy.
 1156 	* ISOLINUX: Wonderfully sick and brilliant workaround for
 1157 	  severe bugs in certain Award BIOSes; from Knut Petersen.
 1158 	* SYSLINUX: Fix for the nomtools installed, from Frederic
 1159 	  Pasteleurs.
 1160 	* PXELINUX: Fix handling of IP numbers in the ranges
 1161 	  100-109 and 200-209.
 1162 	* ALL: New option "allowoptions" (defaults to 1), which
 1163 	  controls if options are allowed on the command line or not.
 1164 	* SYSLINUX: Support building under klibc (see the klibc
 1165 	  distribution for details.)
 1166 
 1167 Changes in 2.09:
 1168 	* SYSLINUX: Remove residual setuid crap from
 1169 	  syslinux-nomtools.
 1170 	* Handle video pages correctly when using the API functions.
 1171 	* Handle compiling on an x86-64 platform correctly.
 1172 	* Menu system from Murali Krishnan Ganapathy; see the menu
 1173 	  directory for information.
 1174 	* COMBOOT: Allow COMBOOT programs to change screen text mode.
 1175 	* COMBOOT: Correct the documentation of how to detect
 1176 	  SYSLINUX from COMBOOT!!!!
 1177 	* COMBOOT: Fix "get key without echo" API function.
 1178 	* SYSLINUX: Fix bug that affected the API open function.
 1179 	* ALL: Improve the E820 memory parser, to work around some
 1180 	  buggy BIOSes.
 1181 
 1182 Changes in 2.08:
 1183 	* Add new configuration command "ontimeout" to allow timeout
 1184 	  to have a different action than just pressing Enter.
 1185 	* Add new configuration command "onerror" to allow a custom
 1186 	  command to be executed in case the kernel image is not found.
 1187 	* Fix bugs in the COMBOOT/COM32 command-line parsing.  APPEND
 1188 	  now works with COMBOOT/COM32 images.
 1189 	* PXELINUX: Poll for ARP requests while sitting at the
 1190 	  prompt.  This makes some boot servers a lot less unhappy.
 1191 	* PXELINUX: Actually free sockets when we get a failure
 1192 	  (including file not found.)  This bug would cause us to run
 1193 	  out of sockets and thus "go deaf" after a while.
 1194 	* MEMDISK: Add an API to query for the existence of MEMDISK.
 1195 	* SYSLINUX: Fix loading boot sectors (.bs/.bss) from floppy
 1196 	  disk.
 1197 	* .c32 is now one of the extensions searched for
 1198 	  automatically.
 1199 	* PXELINUX: RFBG.exe seems to randomly overwrite memory
 1200 	  location 0x5700.  Thus, don't use it!
 1201 	* PXELINUX: Change pathname length max from 63 to 127; change
 1202 	  max vkernels from 128 to 64.
 1203 	* Support Ctrl-U -> kill entire command line input.
 1204 	* The "samples" directory contains a (barely at all tested)
 1205 	  chain loading example, chain.c32, which may be used to
 1206 	  chainload local floppy disks and hard disks.  Use with
 1207 	  "chain fdN" or "chain hdN [partition]"; N = 0 for the first
 1208 	  drive of each type.
 1209 
 1210 Changes in 2.07:
 1211 	* MEMDISK: Workaround for BIOSes which go into a snit when
 1212 	  they get a RESET command for the floppy system when there is
 1213 	  no floppy in the system.
 1214 	* PXELINUX: Add "ipappend 2", which passes the hardware
 1215 	  address of the boot interface to the kernel as a
 1216 	  command-line option.
 1217 	* mkdiskimage: fix the generation of the end limit.
 1218 	* PXELINUX: Fix multiple bugs in chainloading of other NBPs.
 1219 	* MEMDISK: Fix bug that would occationally cause "ran out of
 1220 	  input data" when using compressed disk images.
 1221 	* SYSLINUX: Updates for the win32 installer (from Lars Munch.)
 1222 	* PXELINUX: PXELINUX-specific options are now recognized both
 1223 	  in a vendor-option-space (a.k.a. type 43 encapsulated) as
 1224 	  well as in a site-option-space (unencapsulated.)
 1225 	* COM32: Don't crash when DS != 0.
 1226 	* COMBOOT/COM32: Make file reading work correctly.  Thanks to
 1227 	  Phung Chi Kien for submitting a test program.
 1228 
 1229 Changes in 2.06:
 1230 	* ALL: Fix problem that would occationally cause a
 1231 	  boot failure, depending on the length of the kernel.
 1232 	* ISOLINUX: Fix problem that would occationally cause a
 1233 	  boot failure, depending on the length of directories.
 1234 	* SYSLINUX: Win32 installer now flushes buffers.
 1235 	* ppmtolss16: Be fully compliant with the PNM spec;
 1236 	  actually process comments in the header and odd
 1237 	  alignments of the various parameters, as well as
 1238 	  "plain" (not raw) files and PBM and PGM files.
 1239 	* PXELINUX: Lower the default MTU to 1472 in order to deal
 1240 	  with systems with slightly nonstandard MTUs, and PXE
 1241 	  stacks which don't defragment correctly.  Unfortunately this
 1242 	  is very hard to test dynamically.
 1243 
 1244 Changes in 2.05:
 1245 	* PXELINUX: Add a default query based on the hardware address
 1246 	  of the boot device.  This is in lower case hexadecimal form
 1247 	  separated by dashes and including the hardware type, for
 1248 	  example, the Ethernet (type 1) address 88:99:AA:BB:CC:DD
 1249 	  would query the file pxelinux.cfg/01-88-99-aa-bb-cc-dd.
 1250         * PXELINUX: Fix bug involving non-IP-based config file names.
 1251 	* SYSLINUX: New installer for WinNT-based systems, from Lars
 1252 	  Munch.
 1253 	* MEMDISK: Fix handling of memory region overlap when
 1254 	  decompressing.  Thanks to Mikhail Kupchik for identifying
 1255 	  the problem.
 1256 
 1257 Changes in 2.04:
 1258 	* ALL: Reclaim even more low memory by observing that
 1259 	  comboot_seg == real_mode_seg is perfectly fine, and by the
 1260 	  fact that the 1000h segment managed to get unused in all
 1261 	  derivatives...
 1262 	* PXELINUX: Attempt to negotiate full Ethernet-sized blocks
 1263 	  (1468 bytes) using the blksize option.
 1264 	* SYSLINUX: Resurrect the old no-mtools version of the
 1265 	  installer, although as a root-only tool.  Some distributors
 1266 	  have indicated that they need a small standalone installer.
 1267 	* MEMDISK: Fix a memory offset computation error when
 1268 	  installing compressed disks which generally would cause
 1269 	  1 MB of memory to be wasted.
 1270 	* MEMDISK: Fix installing the E820 memory map.  Calling
 1271 	  INT 15h AX=0E820h with MEMDISK 2.03 loaded would give a
 1272 	  completely corrupt memory map.
 1273 	* SYSLINUX: Make libsyslinux a dynamic library, so that it can
 1274 	  be updated separately from client programs.  The whole idea,
 1275 	  after all, is to enable alternate programs to become
 1276 	  syslinux installers.
 1277 	* Include an rpm spec file in the distribution, so rpmbuild
 1278 	  -ta works.
 1279 
 1280 Changes in 2.03:
 1281 	* Actually support comment lines in the configuration file.
 1282 	* PXELINUX: Try to resolve some problems with stack switches.
 1283 	* PXELINUX: Handle PXE stacks with broken routing.
 1284 	  With these workarounds, the remote install PXE boot floppy
 1285 	  (rbfg.exe) from Argon Technologies should work correctly.
 1286 	* Fix problems with Perl scripts in UTF-8 locales.
 1287 	* You probably need NASM 0.98.34 or later to compile this
 1288 	  version.  0.98.36 is recommended.
 1289 	* MEMDISK: Now supports gzip compressed images.
 1290 
 1291 Changes in 2.02:
 1292 	* SYSLINUX: Security flaws have been found in the SYSLINUX
 1293 	  installer when running setuid root.  Rewrite the SYSLINUX
 1294 	  installer so it uses mtools instead.  It therefore now
 1295 	  requires mtools (specifically mcopy and mattrib) to exist on
 1296 	  your system, but it will not require root privileges and
 1297 	  SHOULD NOT be setuid.
 1298 
 1299 Changes in 2.01:
 1300 	* MEMDISK: Fix memory sizing bug when the ramdisk crosses the
 1301 	  16 MB boundary.
 1302 	* MEMDISK: Add a "pause" option to stop immediately before
 1303 	  booting, to read off the messages.
 1304 	* MEMDISK: Support disk images with DOSEMU headers.
 1305 	* Update the mkdiskimage script to handle newer mtools
 1306 	  versions, and be able to generate disk images with DOSEMU
 1307 	  headers (controlled by the -d option).
 1308 	* Fix the COM32 sample program.
 1309 	* PXELINUX, ISOLINUX: Fix some COMBOOT API calls.
 1310 	* PXELINUX: Doc fix.
 1311 	* Build SYSLINUX into a small library for encapsulation into
 1312 	  other programs (however, please keep in mind this is a GPL'd
 1313 	  library.)
 1314 	* SYSLINUX: Make installer work with "owner" in /etc/fstab.
 1315 	* SYSLINUX: Fix issue with working on nonpartitioned hard disk
 1316 	  devices.  THIS CONFIGURATION IS NOT RECOMMENDED.
 1317 
 1318 Changes in 2.00:
 1319 	* ALL: Add support for "COM32" (32-bit COMBOOT) images.
 1320 	* ALL: Add an API for COMBOOT/COM32 images.  See comboot.doc
 1321 	  for details.  There is a C development environment for
 1322 	  COM32 being created; it should be ready at some point in
 1323 	  the future.
 1324 	* Fix mbr.asm so that it actually works.
 1325 	* SYSLINUX: The syslinux installer *SHOULD* now be safe to
 1326 	  run setuid root.
 1327 	* PXELINUX: Fix bug where PXELINUX would override random
 1328 	  chunks of the UNDI code segment!  Thanks to Kevin Tran for
 1329 	  finding this bug.
 1330 	* ISOLINUX: Fix a bug related to slashes in pathnames.
 1331 	* ISOLINUX: Fix a bug in handling initrds over 128 MB.
 1332 	* ALL: Make the <Ctrl-V> key print out the version; this is
 1333 	  to help debugging.
 1334 	* Add a small script, mkdiskimage, to create a DOS-formatted
 1335 	  hard disk image using mtools.  This may be useful in
 1336 	  conjunction with MEMDISK.
 1337 	* ISOLINUX: Search for a /boot/isolinux directory as well as
 1338 	  /isolinux.
 1339 	* ALL: Fix a bug related to very long configuration files.
 1340 	* PXELINUX: Work around a NASM bug which would result in no
 1341 	  delay before reset if an error occurs.
 1342 
 1343 Changes in 1.76:
 1344 	* ISOLINUX: Remove code no longer used which caused hangs on
 1345 	  some Toshiba laptops.
 1346 
 1347 Changes in 1.75:
 1348 	* ALL: NASM 0.98.32 or later is now required to build
 1349 	  SYSLINUX from sources.
 1350 	* SYSLINUX: put back in the workaround for the BIOS floppy
 1351 	  table.  This seems to be a requirement for "extended" floppy
 1352 	  formats to work correctly.
 1353 	* SYSLINUX: No longer warn if one is trying to boot on a 286
 1354 	  or older.  The above BIOS workaround no longer fits if the
 1355 	  requirement to use only 8086-compatible code in the early
 1356 	  boot is maintained.  It made sense in 1994, but in 2002 a
 1357 	  286 or older is a museum object.
 1358 	* SYSLINUX: Use a downright bizarre, stateful algorithm to try
 1359 	  to guess the maximum transfer size.  I am *hoping* this will
 1360 	  cut down on the number of systems for which -s is required
 1361 	  to work at any acceptable speed.
 1362 	* ISOLINUX: Add a few more workarounds for various broken El
 1363 	  Torito BIOSes.
 1364 	* Make sure .depend files aren't accidentally packed...
 1365 	* ALL: Fix bugs in the extension-detect code; this caused
 1366 	  files like COMBOOT images and CD boot sectors to be
 1367 	  mis-identified as Linux kernels and rejected.
 1368 	* ALL: Fix the return from COMBOOT.
 1369 	* ALL: Do some of the early groundwork for supporting DOS
 1370 	  system calls in COMBOOT.
 1371 	* Get rid of unnecessary "near" directives, making the code
 1372 	  bigger.
 1373 	* PXELINUX: Put the PXE stack back in the init state before
 1374 	  invoking a chain-loaded NBP.
 1375 	* PXELINUX: Actually found the combination of calls that
 1376 	  allows some (most?) PXE 2+ stacks to be unloaded from memory
 1377 	  properly.
 1378 	* PXELINUX: Add "keeppxe" command-line option to disable
 1379 	  the standard unloading of the PXE stack.
 1380 
 1381 Changes in 1.74:
 1382 	* SYSLINUX: fix bug that would cause valid kernel images to be
 1383 	  labelled "invalid".
 1384 
 1385 Changes in 1.73:
 1386 	* Work on removing gratuitous differences between modules.
 1387 	* Break up the source in common and module-specific files.
 1388 	* PXELINUX: Allow chaining of other PXE NBPs.
 1389 	* ISOLINUX: Allow loading "CD-ROM boot sectors".
 1390 	* ALL: generalize the definition of a boot sector/NBP.
 1391 
 1392 Changes in 1.72:
 1393 	* PXELINUX, ISOLINUX: Fix bugs in the new core code.
 1394 
 1395 Changes in 1.71:
 1396 	* Fix a "brown paper bag" class bug in the new core code.
 1397 
 1398 Changes in 1.70:
 1399 	* Major code restructuring.
 1400 	* Relax the conventional memory limits somewhat.
 1401 	* MEMDISK: Set up the "version number string" pointer in the
 1402 	  header correctly.
 1403         * SYSLINUX: Fix, again, "the bug that won't die": the use of
 1404           the offset parameter with the SYSLINUX installer.
 1405 	* SYSLINUX: Fix possible superblock corruption problem in the
 1406 	  SYSLINUX installer.
 1407 
 1408 Changes in 1.67:
 1409 	* Handle bug in the location of initrd.
 1410 
 1411 Changes in 1.66:
 1412 	* MEMDISK: Make compile with newer versions of gcc.
 1413 
 1414 Changes in 1.65:
 1415 	* ISOLINUX: Support booting disk image files (to boot DOS or
 1416 	  other non-Linux operating systems), *IF* the BIOS works
 1417 	  correctly; unfortunately many BIOSes apparently don't.
 1418 	* Support Linux boot protocol version 2.03 (explicitly
 1419 	  specify the initrd address limit.)
 1420 	* Handle small "pseudo-kernels"; images that use the Linux
 1421 	  kernel boot protocols but are less than 64K in size.
 1422 	* MEMDISK: New subsystem; this is a driver which allows
 1423 	  legacy OSes to boot using an in-memory simulated disk.
 1424 	  See memdisk/memdisk.doc for more info.
 1425 	* PXELINUX, ISOLINUX: Correctly handle files larger than 65535
 1426 	  blocks (32 MB for PXELINUX, 128 MB for ISOLINUX.)
 1427 	* PXELINUX: Make a best-effort attempt at freeing all memory
 1428 	  claimed.  From the looks of it, it will fail on most PXE
 1429 	  stacks.
 1430 
 1431 Changes in 1.64:
 1432 	* Limited support for hardware flow control when using a
 1433 	  serial port console.
 1434 	* Support specifying the serial port I/O address explicitly.
 1435 	* Make DOS installer hopefully behave more nicely when used on
 1436 	  recent Windows versions.
 1437 	* Fix returning to text mode when a font has been specified.
 1438 	* Attempt to detect missing serial port hardware and disable
 1439 	  the serial port if there is nothing there.
 1440 
 1441 Changes in 1.63:
 1442 	* Make the ppmtolss16 program handle color conversion more
 1443 	  correctly.
 1444 	* Clean up "make install" target, honour INSTALLROOT if it
 1445 	  exists.
 1446 	* SYSLINUX: Fix stack-smash bug identified by Steffen
 1447 	  Winterfeldt.
 1448 	* Hopefully fix return-to-text-mode on some graphics cards.
 1449 	* ISOLINUX: Bug workaround for Award BIOS 4.51, and perhaps
 1450 	  other buggy BIOSes as well.
 1451 
 1452 Changes in 1.62:
 1453 	* PXELINUX: Allow the DHCP server to override the
 1454 	  configuration file name and pathname prefix, using
 1455 	  "site-specific" DHCP options.
 1456 	* PXELINUX: Documentation fixes.
 1457 	* PXELINUX: Fix the "ipappend" option; the last two values
 1458 	  were reversed vs. what the kernel expected.
 1459 	* Introduce a way to return to text mode once we are already
 1460 	  in graphics mode.  This may be useful for F-key help
 1461 	  screens.
 1462 	* Fix several bugs in the way return to text mode was handled.
 1463 
 1464 Changes in 1.61:
 1465 	* ISOLINUX: Support full pathname searches.  Max length for a
 1466 	  pathname is 255 characters.  As a result, only 64 "label"
 1467 	  statements are supported in ISOLINUX.
 1468 	* PXELINUX: Max filename length extended to 63 characters.
 1469 
 1470 Changes in 1.60:
 1471 	* Add support for graphical splash screens.
 1472 	* Add mode control characters, which allows you to control
 1473 	  message display output depending on output mode (text,
 1474 	  graphics, or serial port.)
 1475 	* ISOLINUX: New program, which boots Linux from a CD-ROM
 1476 	  without using floppy emulation mode.  See isolinux.doc for
 1477 	  more details.
 1478 	* PXELINUX: Don't search for boot sector file types, since
 1479 	  they don't work anyway.
 1480 	* SYSLINUX: Document the LOCK command for Win9x, and the error
 1481 	  dialog box for WinNT/2K.
 1482 
 1483 Changes in 1.54:
 1484 	* PXELINUX: Fix code for finding !PXE from PXENV+.  This was
 1485 	  due to a spec bug; match the most recent spec since that
 1486 	  seems to be what implementations actually do.
 1487 	* SYSLINUX: Add some smarts to the boot sector, which
 1488 	  hopefully should reduce the number of systems which require
 1489 	  stupid mode ("syslinux -s").
 1490 	* PXELINUX: Document further some of the pathologies with old
 1491 	  PXE stacks.
 1492 	* When specifying a "default" command line, no longer
 1493 	  automatically appent "auto".  See the "DEFAULT" command in
 1494 	  syslinux.doc for more information.
 1495 	* PXELINUX: Clean up the allocation of local socket numbers.
 1496 
 1497 Changes in 1.53:
 1498 	* PXELINUX: Rename pxelinux.bin to pxelinux.0, to match what
 1499 	  most PXE servers seem to expect.
 1500 	* PXELINUX: Update the DHCP/boot server setup documentation.
 1501 	* PXELINUX: Support new "localboot" option for "label"
 1502 	  sections.
 1503 	* PXELINUX: More robust parsing of DHCP/boot server packets.
 1504 	* PXELINUX: Include a small utility program "gethostip" to
 1505 	  compute hexadecimal IP addresses.
 1506 
 1507 Changes in 1.52:
 1508 	* PXELINUX: Fix bugs introduced by new A20 code.  (SYSLINUX
 1509 	  has also been changed for code consistency reasons, but I'm
 1510 	  pretty sure the changes are don't care on SYSLINUX.)
 1511 	* Documentation updates.
 1512 	* PXELINUX: Add "ipappend" option to generate an ip= option to
 1513 	  the kernel.
 1514 
 1515 Changes in 1.51:
 1516 	* PXELINUX: Not all PXE stacks fill in the IP address for a
 1517 	  type 3 cached info query.  Use a type 2 cached info query
 1518 	  for this information (only.)
 1519 	* Yet another attempt at A20 coding.  Now support BIOS call
 1520 	  15:2401 as well, and handle machines which always have A20
 1521 	  on separately.
 1522 	* Support memory detection using INT 15h, AX=0E820h.  BIOS
 1523 	  manufacturers have apparently gotten sloppy about keeping
 1524 	  INT 15h, AX=0E801h working properly.
 1525 	* Don't issue <CR><LF> onto the serial port when we're doing
 1526 	  screen wraparound.
 1527 
 1528 Changes in 1.50:
 1529 	* Yet another A20-code update.  It seems some "legacy-free"
 1530 	  machines and embedded gear simply don't have a KBC to talk
 1531 	  to, and that waiting for one will wait forever.  Sigh.
 1532 
 1533 Changes in 1.49:
 1534 	* SYSLINUX: Implement a hack for BIOS drivers which hog significant
 1535 	  chunks of low memory during boot.  (Note: PXELINUX already
 1536 	  had this modification.  SYSLINUX does still require that the
 1537 	  low 512K is available; PXELINUX requires 384K.  Machines
 1538 	  with a physical memory hole in the low 640K cannot boot
 1539 	  Linux no matter what.)  Depending what the reason is for the
 1540 	  memory hole, a new kernel (2.4.0-test3-pre3 or later) may be
 1541 	  required.
 1542 	* SYSLINUX: Default installer binary now compiled against
 1543 	  glibc 2.1.  If this is inappropriate for your system and you
 1544 	  still want to use the offical version of SYSLINUX, please
 1545 	  follow the instructions in "distrib.doc" to rebuild the
 1546 	  installer.
 1547 	* SYSLINUX: Linux installer program now supports -o <offset>
 1548 	  option which does a loopback mount with the
 1549 	  -o loop,offset=<> option.  Useful to run SYSLINUX on an
 1550 	  individual partition of a whole-harddisk image.
 1551 	* Include the source code to a Master Boot Record (MBR)
 1552 	  functionally equivalent to the one installed DOS except it
 1553 	  includes EBIOS support, and should be resistant to geometry
 1554 	  changes.  The MBR code is public domain.
 1555 	* PXELINUX: Fix "double p" bug: if the tftp prefix was null,
 1556 	  all filenames would get a "p" preprended, e.g.
 1557 	  "ppxelinux.cfg" and "pvmlinux".
 1558 
 1559 Changes in 1.48:
 1560 	* PXELINUX: Workaround for PXE ROMs based on the Intel PXE PDK
 1561 	  3.0 build 071 and earlier: missing !PXE structure pointer.
 1562 	* PXELINUX: Handle larger BOOTP/DHCP packages.
 1563 	* PXELINUX: The command line passing was broken; fix.
 1564 	* PXELINUX: Make COMBOOT images work.
 1565 	* PXELINUX: Documentation on how to make booting work using
 1566 	  the PDK 3.0-derived clients, which aren't so generous as to
 1567 	  allow booting with only "PXEClient" specified.
 1568 
 1569 Changes in 1.47:
 1570 	* PXELINUX: RFC 1123 states that a TFTP implementation MUST
 1571 	  use adaptive timeout, "at least an exponential backoff of
 1572           retransmission timeout is necessary."  Implement a very
 1573 	  simple exponential backoff for retransmits.
 1574 	* PXELINUX: Updated documentation, including pointer to new
 1575 	  TFTP server.
 1576 	* PXELINUX: When sending ERROR due to bad OACK, use the proper
 1577 	  destination port number (why are TFTP port numbers so odd?)
 1578 	* PXELINUX: If the boot dies in the middle somewhere,
 1579 	  eventually give up and reset the machine (unattended
 1580 	  operation.)
 1581 
 1582 Changes in 1.46:
 1583 	* New program PXELINUX to do network booting using a
 1584 	  PXE-compliant (Pre-Execution Environment) network booting
 1585 	  PROM.  See pxelinux.doc for details.
 1586 
 1587 Changes in 1.45:
 1588 	* Serial console support.  See syslinux.doc for details.
 1589 
 1590 Changes in 1.44:
 1591 	* Change HIGHMEM_MAX to 38000000h to (hopefully) avoid the
 1592 	  kernel stepping on it; 3f000000h was apparently a higher
 1593 	  limit than the kernel used!
 1594 
 1595 Changes in 1.43:
 1596 	* Add sys2ansi.pl script to display the contents of a
 1597 	  colorized SYSLINUX file.
 1598 	* Changed the io_delay once again, after a report that the
 1599 	  old delay port causes hangs on some systems.
 1600 
 1601 Changes in 1.42:
 1602 	* Frob the "fast A20 gate" port as well as the keyboard
 1603 	  controller; will this help systems with problems?
 1604 	* Be even more paranoid about A20, unfortunately even this
 1605 	  seems to be not paranoid enough... what I don't understand
 1606 	  is that if there is hardware out there *this broken*, how
 1607 	  can it run Linux at all?  Report an error message rather
 1608 	  than hang forever if A20 is stuck.
 1609 	* Include some intermediate files in the distribution, plus
 1610 	  provide a "make installer" target for distributors to relink
 1611 	  the install programs only.  I would prefer the syslinux boot
 1612 	  loader proper to be "binary clean" for debuggablity -- use
 1613 	  "make clean ; make installer" to rebuild the installers only.
 1614 
 1615 Changes in 1.41:
 1616 	* Don't get confused by directories, volume labels, or VFAT
 1617 	  long names.
 1618 	* Use INT 15h, AX=0E801h to query memory size before trying
 1619 	  INT 15h, AH=88h.  This not only provides more headroom
 1620 	  between the kernel and the initrd on large-memory machines,
 1621 	  but it appears some recent BIOSes actually have started
 1622 	  returning garbage for the AH=88h (older) call.
 1623 	* Trust high memory beyond the 15 MB mark if the user has
 1624 	  specified it, or if obtained with INT 15h, AH=0E801h (with
 1625 	  no memory holes above 1 MB.)
 1626 
 1627 Changes in 1.40:
 1628 	* Increase A20M delay and put in a test to avoid problems on
 1629 	  certain IBM Thinkpads (thanks to Donnie Barnes of RedHat
 1630 	  for vital info on this one.)
 1631 	* Support COMBOOT style boot command images.
 1632 	* Support chain loading (foreign operating systems, e.g. DOS).
 1633 	* Include a new "copybs" DOS utility to copy a boot sector to
 1634 	  a file (under Linux, use "dd".)
 1635 	* Fix the DOS installer to work for disks over 32 MB.
 1636 	* SYSLINUX should now handle disks with more than 65536 tracks.
 1637 
 1638 Changes in 1.37:
 1639 	* Fix a bug that caused "label" statements in syslinux.cfg to
 1640 	  not be handled properly.
 1641 	* Updated the documentation.  Among other things, we now allow
 1642 	  up to 128 "label" statements.
 1643 
 1644 Changes in 1.36:
 1645 	* Fix for booting old (pre-initrd) kernels.
 1646 	* It seems at least some versions of OS/2 doesn't set up all
 1647 	  the fields in the superblock correctly.  Account for that.
 1648 	* Fix bug that caused boot failure when using the mem= option.
 1649 
 1650 Changes in 1.35:
 1651 	* Loading from partitions now should work properly.  (Actually
 1652 	  tested, this time.  You should even be able to dd a floppy
 1653 	  to a partition and boot from it.)
 1654 	* Removed large workaround code for an alleged ancient BIOS
 1655 	  bug I have never actually seen.  The -s option should work
 1656 	  on those machines, anyway.
 1657 	* Support for simple keyboard remappings, same as used by
 1658 	  LILO (once again to support localization.)  The program
 1659 	  keytab-lilo.pl from the LILO distribution included to
 1660 	  generate such maps.
 1661 	* Added a "safe, slow and stupid" (-s) option to the
 1662 	  installers.  This option will lobotomize the boot sector to
 1663 	  hopefully work on even very buggy BIOSes.
 1664 
 1665 Changes in 1.34:
 1666 	* Ability to load a VGA font on bootup (for localized Linux
 1667 	  distributions.)
 1668 
 1669 Changes in 1.33:
 1670 	* Bug fix in the Linux installer.
 1671 	* Added a workaround for a bug in certain AMI/Intel BIOSes
 1672 	  when booting from CD-ROM.
 1673 	* Documentation changes.
 1674 
 1675 Changes in 1.32:
 1676 	* FAT16 filesystems are now supported.
 1677 
 1678 Changes in 1.31:
 1679 	* Now compiles under Linux, using NASM, rather than using
 1680 	  Turbo Assembler under DOS.  See http://www.cryogen.com/Nasm
 1681 	  for information about NASM.
 1682 	* Linux-hosted SYSLINUX installer, as well as a
 1683 	  rewritten DOS installer (now is written in assembler, so we
 1684 	  don't need Turbo C.)
 1685 
 1686 Changes in 1.30:
 1687 	* Added support for loading bzImage and initrd loading, and made
 1688 	  SYSLINUX new-setup-code aware (SYSLINUX 1.30 id=0x31).
 1689 	* Added LILO-style kernel labels; see the LABEL and IMPLICIT
 1690 	  keywords in README file.
 1691 	* Added support for colorization of intro and help screens.
 1692 	* The vga= option is now handled correctly.
 1693 	* Massive rewrite of large chunks of the code in order to
 1694 	  support the first two new features.
 1695 
 1696 Changes in 1.20:
 1697 	* Added simple online help at the "boot:" prompt.
 1698 	* Removed 2880K image as I no longer have access to such a
 1699 	  floppy drive.	 (Donations accepted!!)
 1700 	* Decided to distribute the source in a subdirectory rather
 1701 	  than in a nested zipfile.
 1702 
 1703 Changes in 1.11:
 1704 	* Removed a sanity check which would cause booting to fail on
 1705 	  Phoenix BIOS version 4.03.  Apparently this BIOS is buggy.
 1706 
 1707 Changes in 1.10:
 1708 	* Added configuration file SYSLINUX.CFG.  This file contains all
 1709 	  configurable options, and can be edited from any OS which can
 1710 	  access an MS-DOS filesystem; there is no longer a need to run
 1711 	  SYSLINUX.EXE except to write the boot sector.
 1712 	* Default command line now given by "default" line in config
 1713 	  file.
 1714 	* LINUXMSG.TXT and BOOTMSG.TXT hard-coded file names replaced by
 1715 	  "display" and "prompt" lines in config file.
 1716 	* LILO-style option appending now supported ("append" line in
 1717 	  config file).
 1718 	* Prompt timeout is now supported ("timeout" line in config
 1719 	  file).  The timeout is cancelled when anything is typed on the
 1720 	  command line.
 1721 	* Pressing <ESC> or <Ctrl-C> at the Loading... stage now aborts
 1722 	  the kernel loading in progress and returns the user to the
 1723 	  boot: prompt.
 1724 	* The installer now automatically sets the READONLY flag on
 1725 	  LDLINUX.SYS.
 1726 	* Added 2880K disk image.
 1727 
 1728 Changes in 1.03:
 1729 	* Fixed bug that would prevent booting from double-density
 1730 	  floppies and other DOS filesystems with multiple sectors per
 1731 	  cluster.
 1732 	* Added 720K disk image.
 1733 	* Changed default kernel name on disk images to LINUX.
 1734 
 1735 Changes in 1.02:
 1736 	* Fixed bug that would garble the command line on recent kernels
 1737 	  with more than 4 sectors of setup code (this wasn't really a
 1738 	  *bug*; rather, a kernel change broke the code.  Unfortunately
 1739 	  the Linux boot interface is still sorely undocumented).
 1740 	* Added BOOTMSG.TXT file support (message file which does not
 1741 	  force display of the boot prompt).
 1742 
 1743 Changes in 1.01:
 1744 	* Fixed bug on some (most?) 386 BIOSes would require two boot
 1745 	  attempts.