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	  they don't work anyway.	* SYSLINUX: Document the LOCK command for Win9x, and the error	  dialog box for WinNT/2K.Changes in 1.54:	* PXELINUX: Fix code for finding !PXE from PXENV+.  This was	  due to a spec bug; match the most recent spec since that	  seems to be what implementations actually do.	* SYSLINUX: Add some smarts to the boot sector, which	  hopefully should reduce the number of systems which require 	  stupid mode ("syslinux -s").	* PXELINUX: Document further some of the pathologies with old	  PXE stacks.	* When specifying a "default" command line, no longer	  automatically appent "auto".  See the "DEFAULT" command in	  syslinux.doc for more information.	* PXELINUX: Clean up the allocation of local socket numbers.Changes in 1.53:	* PXELINUX: Rename pxelinux.bin to pxelinux.0, to match what	  most PXE servers seem to expect.	* PXELINUX: Update the DHCP/boot server setup documentation.	* PXELINUX: Support new "localboot" option for "label"	  sections.	* PXELINUX: More robust parsing of DHCP/boot server packets.	* PXELINUX: Include a small utility program "gethostip" to	  compute hexadecimal IP addresses.Changes in 1.52:	* PXELINUX: Fix bugs introduced by new A20 code.  (SYSLINUX	  has also been changed for code consistency reasons, but I'm	  pretty sure the changes are don't care on SYSLINUX.)	* Documentation updates.	* PXELINUX: Add "ipappend" option to generate an ip= option to	  the kernel.Changes in 1.51:	* PXELINUX: Not all PXE stacks fill in the IP address for a	  type 3 cached info query.  Use a type 2 cached info query	  for this information (only.)	* Yet another attempt at A20 coding.  Now support BIOS call	  15:2401 as well, and handle machines which always have A20	  on separately.	* Support memory detection using INT 15h, AX=0E820h.  BIOS	  manufacturers have apparently gotten sloppy about keeping	  INT 15h, AX=0E801h working properly.	* Don't issue <CR><LF> onto the serial port when we're doing	  screen wraparound.Changes in 1.50:	* Yet another A20-code update.  It seems some "legacy-free"	  machines and embedded gear simply don't have a KBC to talk	  to, and that waiting for one will wait forever.  Sigh.Changes in 1.49:	* SYSLINUX: Implement a hack for BIOS drivers which hog significant	  chunks of low memory during boot.  (Note: PXELINUX already	  had this modification.  SYSLINUX does still require that the	  low 512K is available; PXELINUX requires 384K.  Machines	  with a physical memory hole in the low 640K cannot boot	  Linux no matter what.)  Depending what the reason is for the	  memory hole, a new kernel (2.4.0-test3-pre3 or later) may be	  required.	* SYSLINUX: Default installer binary now compiled against	  glibc 2.1.  If this is inappropriate for your system and you	  still want to use the offical version of SYSLINUX, please	  follow the instructions in "distrib.doc" to rebuild the	  installer.	* SYSLINUX: Linux installer program now supports -o <offset>	  option which does a loopback mount with the	  -o loop,offset=<> option.  Useful to run SYSLINUX on an	  individual partition of a whole-harddisk image.	* Include the source code to a Master Boot Record (MBR)	  functionally equivalent to the one installed DOS except it	  includes EBIOS support, and should be resistant to geometry	  changes.  The MBR code is public domain.	* PXELINUX: Fix "double p" bug: if the tftp prefix was null,	  all filenames would get a "p" preprended, e.g.	  "ppxelinux.cfg" and "pvmlinux".Changes in 1.48:	* PXELINUX: Workaround for PXE ROMs based on the Intel PXE PDK	  3.0 build 071 and earlier: missing !PXE structure pointer.	* PXELINUX: Handle larger BOOTP/DHCP packages.	* PXELINUX: The command line passing was broken; fix.	* PXELINUX: Make COMBOOT images work.	* PXELINUX: Documentation on how to make booting work using	  the PDK 3.0-derived clients, which aren't so generous as to	  allow booting with only "PXEClient" specified.Changes in 1.47:	* PXELINUX: RFC 1123 states that a TFTP implementation MUST	  use adaptive timeout, "at least an exponential backoff of          retransmission timeout is necessary."  Implement a very	  simple exponential backoff for retransmits.	* PXELINUX: Updated documentation, including pointer to new	  TFTP server.	* PXELINUX: When sending ERROR due to bad OACK, use the proper	  destination port number (why are TFTP port numbers so odd?)	* PXELINUX: If the boot dies in the middle somewhere,	  eventually give up and reset the machine (unattended	  operation.)Changes in 1.46:	* New program PXELINUX to do network booting using a	  PXE-compliant (Pre-Execution Environment) network booting	  PROM.  See pxelinux.doc for details.Changes in 1.45:	* Serial console support.  See syslinux.doc for details.Changes in 1.44:	* Change HIGHMEM_MAX to 38000000h to (hopefully) avoid the	  kernel stepping on it; 3f000000h was apparently a higher	  limit than the kernel used!Changes in 1.43:	* Add sys2ansi.pl script to display the contents of a	  colorized SYSLINUX file.	* Changed the io_delay once again, after a report that the	  old delay port causes hangs on some systems.Changes in 1.42:	* Frob the "fast A20 gate" port as well as the keyboard	  controller; will this help systems with problems?	* Be even more paranoid about A20, unfortunately even this	  seems to be not paranoid enough... what I don't understand	  is that if there is hardware out there *this broken*, how	  can it run Linux at all?  Report an error message rather	  than hang forever if A20 is stuck.	* Include some intermediate files in the distribution, plus	  provide a "make installer" target for distributors to relink	  the install programs only.  I would prefer the syslinux boot	  loader proper to be "binary clean" for debuggablity -- use	  "make clean ; make installer" to rebuild the installers only.Changes in 1.41:	* Don't get confused by directories, volume labels, or VFAT	  long names.	* Use INT 15h, AX=0E801h to query memory size before trying	  INT 15h, AH=88h.  This not only provides more headroom	  between the kernel and the initrd on large-memory machines,	  but it appears some recent BIOSes actually have started	  returning garbage for the AH=88h (older) call.	* Trust high memory beyond the 15 MB mark if the user has	  specified it, or if obtained with INT 15h, AH=0E801h (with	  no memory holes above 1 MB.)Changes in 1.40:	* Increase A20M delay and put in a test to avoid problems on	  certain IBM Thinkpads (thanks to Donnie Barnes of RedHat	  for vital info on this one.)	* Support COMBOOT style boot command images.	* Support chain loading (foreign operating systems, e.g. DOS).	* Include a new "copybs" DOS utility to copy a boot sector to	  a file (under Linux, use "dd".)	* Fix the DOS installer to work for disks over 32 MB.	* SYSLINUX should now handle disks with more than 65536 tracks.Changes in 1.37:	* Fix a bug that caused "label" statements in syslinux.cfg to	  not be handled properly.	* Updated the documentation.  Among other things, we now allow	  up to 128 "label" statements.Changes in 1.36:	* Fix for booting old (pre-initrd) kernels.	* It seems at least some versions of OS/2 doesn't set up all	  the fields in the superblock correctly.  Account for that.	* Fix bug that caused boot failure when using the mem= option.Changes in 1.35:	* Loading from partitions now should work properly.  (Actually	  tested, this time.  You should even be able to dd a floppy	  to a partition and boot from it.)	* Removed large workaround code for an alleged ancient BIOS	  bug I have never actually seen.  The -s option should work	  on those machines, anyway.	* Support for simple keyboard remappings, same as used by	  LILO (once again to support localization.)  The program	  keytab-lilo.pl from the LILO distribution included to	  generate such maps.	* Added a "safe, slow and stupid" (-s) option to the	  installers.  This option will lobotomize the boot sector to	  hopefully work on even very buggy BIOSes.	Changes in 1.34:	* Ability to load a VGA font on bootup (for localized Linux	  distributions.) Changes in 1.33:	* Bug fix in the Linux installer.	* Added a workaround for a bug in certain AMI/Intel BIOSes	  when booting from CD-ROM.	* Documentation changes.Changes in 1.32:	* FAT16 filesystems are now supported.Changes in 1.31:	* Now compiles under Linux, using NASM, rather than using	  Turbo Assembler under DOS.  See http://www.cryogen.com/Nasm	  for information about NASM.	* Linux-hosted SYSLINUX installer, as well as a	  rewritten DOS installer (now is written in assembler, so we	  don't need Turbo C.)Changes in 1.30:	* Added support for loading bzImage and initrd loading, and made	  SYSLINUX new-setup-code aware (SYSLINUX 1.30 id=0x31).	* Added LILO-style kernel labels; see the LABEL and IMPLICIT	  keywords in README file.	* Added support for colorization of intro and help screens.	* The vga= option is now handled correctly.	* Massive rewrite of large chunks of the code in order to	  support the first two new features.Changes in 1.20:	* Added simple online help at the "boot:" prompt.	* Removed 2880K image as I no longer have access to such a	  floppy drive.	 (Donations accepted!!)	* Decided to distribute the source in a subdirectory rather	  than in a nested zipfile.Changes in 1.11:	* Removed a sanity check which would cause booting to fail on	  Phoenix BIOS version 4.03.  Apparently this BIOS is buggy.Changes in 1.10:	* Added configuration file SYSLINUX.CFG.  This file contains all	  configurable options, and can be edited from any OS which can	  access an MS-DOS filesystem; there is no longer a need to run	  SYSLINUX.EXE except to write the boot sector.	* Default command line now given by "default" line in config	  file.	* LINUXMSG.TXT and BOOTMSG.TXT hard-coded file names replaced by	  "display" and "prompt" lines in config file.	* LILO-style option appending now supported ("append" line in	  config file).	* Prompt timeout is now supported ("timeout" line in config	  file).  The timeout is cancelled when anything is typed on the	  command line.	* Pressing <ESC> or <Ctrl-C> at the Loading... stage now aborts	  the kernel loading in progress and returns the user to the	  boot: prompt.	* The installer now automatically sets the READONLY flag on	  LDLINUX.SYS.	* Added 2880K disk image.Changes in 1.03:	* Fixed bug that would prevent booting from double-density	  floppies and other DOS filesystems with multiple sectors per	  cluster.	* Added 720K disk image.	* Changed default kernel name on disk images to LINUX.Changes in 1.02:	* Fixed bug that would garble the command line on recent kernels	  with more than 4 sectors of setup code (this wasn't really a	  *bug*; rather, a kernel change broke the code.  Unfortunately	  the Linux boot interface is still sorely undocumented).	* Added BOOTMSG.TXT file support (message file which does not	  force display of the boot prompt).Changes in 1.01:	* Fixed bug on some (most?) 386 BIOSes would require two boot	  attempts.

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