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1 Starting with 1.47, changes marked with SYSLINUX/PXELINUX/ISOLINUX
2 apply to that specific program only; other changes apply to all of
3 them.
5 Changes in 3.72:
6 * Include the pxechain.com module from Jeffery Hutzelman at
7 Carnegie Mellon University. This allows chaining another
8 PXE boot program while changing the DHCP packet passed to
9 it.
10 * Reorganize the Makefile system.
11 * Major PCI core cleanups and other source cleanup.
12 * gPXE code updated.
13 * Try to avoid memory-snooping attacks on passwords. Note
14 that if someone has root on the box, they generally don't
15 need to compromise the boot loader...
16 * ISOLINUX: fix crash when given a zero-length file.
17 * sdi.c32: support gzipped SDI images.
18 * ISOLINUX: support generating images which can be either
19 a CD-ROM or a hard disk (USB disk, etc.) See
20 doc/isolinux.txt for more information.
21 * Remote gdb support for COM32 modules; patch from Stefan
22 Hajnoczi.
23 * Support beeps in F-key help in the simple menu system.
24 * Tab display of labels, based on a patch from Sebastian
25 Herbszt. Can be disabled with the NOCOMPLETE configuration
26 command.
27 * "menu default" can now be specified after "menu begin", to
28 indicate that a specific submenu should be the default entry.
30 Changes in 3.71:
31 * Workaround for a VESA BIOS which tries to make DOS system
32 calls(!!)
33 * Simple menu: fix navigation around disabled entries
34 (or at least try to...)
35 * EXTLINUX: proper error message when confused about mount
36 point.
37 * MEMDISK: be smarter about incompletely disabled floppies in
38 the BIOS and about being the only floppy.
39 * Optionally allow initrd to be specified on a separate line
40 rather than as part of the "append" line. This is not
41 recommended, but apparently makes life easier for some
42 tools.
43 * SYSLINUX: if no config file is present, set the current
44 directory to the root directory (Sebastian Herbszt).
45 * chain.c32: option "hide" to support hiding and unhiding of
46 primary partitions on the boot drive with DOS, Win, or OS/2
47 partition types (01, 04, 06, 07, 0b, 0c, 0e).
48 * Unbreak the KBDMAP command (broken in 3.70).
49 * EXTLINUX: fix the handling of the ADV when using CBIOS.
50 * ifcpu64.c32: simple COM32 module to select a 32- or 64-bit
51 kernel (and optionally 32-bit kernels with or without PAE.)
52 Eventually we want a scripting language for this
53 kind of stuff; a Lua module is under development.
54 * Fix parsing of the SERIAL command without a baud rate
55 specified.
56 * chain.c32: error out when try to boot an unbootable
57 partition.
58 * SYSLINUX: when building the Win32 installer, search for
59 MinGW under a large number of possible names.
61 Changes in 3.70:
62 * PXELINUX: Support enhanced capabilities when running on top
63 of gPXE (http://www.etherboot.org/). In particular, support
64 URL-style syntax for filenames, and any protocol that gPXE
65 supports (except, currently, iSCSI and AoE.) This feature
66 is currently highly experimental.
67 * Substantial infrastructure changes to support files whose
68 length aren't known at open time (typically network
69 connections.) Please note that the semantics of some of the
70 comboot APIs have changed slightly; please see doc/comboot.txt.
71 * PXELINUX: We no longer require a TFTP server which supports
72 the tsize option for all transfers.
73 * PXELINUX: Integrate with the gPXE source base; unified image
74 now included as "gpxelinux.0".
75 * The source tree has been restructured; files that were
76 previously in the root have moved into the core, dos, gpxe,
77 and utils directories.
78 * "make install", "make netinstall", and "make extbootinstall"
79 have been updated massively. "make install-all" now installs
80 all three.
81 * Change default dir for auxiliary files from
82 /usr/lib/syslinux to /usr/share/syslinux.
83 * SYSLINUX: VFAT long filename support.
84 * MEMDISK: Any image less than 4096K (4 MB) is treated as a
85 floppy disk. The geometry-guessing code will recognize all
86 common extended formats, but it is still possible some very
87 exotic formats need geometry specification. Large floppies
88 and very small harddisks still need explicit specification.
89 * chain.c32: option "swap" to support swapping of BIOS drive
90 numbers. This is necessary to boot certain operating systems
91 (DOS, Windows) from a secondary drive.
92 * chain.c32: option "file=" to support loading a boot file from
93 the SYSLINUX filesystem instead of loading the boot sector
94 from the drive.
95 * chain.c32: option "seg=" to control the load location.
96 * chain.c32: option "ntldr=" as a shorthand for "seg=0x2000
97 file="; use this to load one of WinNT's loaders:
99 chain.c32 hd0 1 ntldr=/MiniNT/setupldr.bin
101 Note that the file needs to be in the SYSLINUX filesystem.
102 * chain.32: options "freedos=" and "msdos="/"pcdos=" as
103 shorthands for "seg=0x60 file=" and "seg=0x70 file="
104 respectively; use this to load FreeDOS's kernel.sys, MS-DOS's
105 io.sys or PC-DOS's ibmbio.sys.
106 * Change to the A20 algorithm which *MIGHT* help systems that
107 have systems which freeze when Syslinux is used with USB
108 keyboards. Note that this has been hard do verify, so I
109 would greatly appreciate feedback on it.
110 * Complex menu system: unbreak menus which has unnamed
111 submenus, like complex.c.
112 * Fix newline on the serial port for some com32 modules.
113 * chain.c32: support "boot" as the drive specification,
114 indicating the drive from which it was booted
115 (for syslinux/extlinux).
116 * SYSLINUX/EXTLINUX: support "localboot" with the same feature
117 set as ISOLINUX.
118 * Add an experimental MBR for GPT partition tables.
119 * Use $(CC) when determining compile flags.
120 * chain.c32: fix booting from logical partitions (Sergey
121 Vlasov.)
123 Changes in 3.63:
124 * Fix errors in the PCI and DMI detection modules (Erwan Velu,
125 Sebastian Herbszt).
126 * Fix host dependencies and other issues in the build system.
127 * PXELINUX: Allow class E addresses as unicast.
128 * sdi.c32: module to load Microsoft System Deployment Images.
129 For additional information, please see:
130 http://msdn2.microsoft.com/en-us/library/ms838543.aspx
131 * EXTLINUX: Correct reading directories with deleted entries.
132 * Shuffle library: correct the handling of certain geometries
133 (an upward move with source material blocking the move); as
134 required by sdi.c32 but theoretically possible for other
135 formats as well.
136 * Add "make netinstall" to install /tftpboot.
137 * Fix some documentation files that didn't get moved/renamed.
139 Changes in 3.62:
140 * Clean up garbage after "aborted." message.
141 * Clean up memdump.com filenames.
142 * Support SHA256 and SHA512 encrypted passwords.
143 * The shuffle library now can generate chained descriptors,
144 thus allowing pretty much arbitrarily complex memory maps.
145 * Handle command lines up to 2047 characters, the current
146 Linux kernel limit.
147 * vesamenu: support systems without linear framebuffer support
148 (sigh, what is this, 1993?) and 15-bit RGB modes.
149 * Move the label storage (for the command-line interface) to
150 high memory, removing the size limit and freeing up 64K of
151 low memory.
152 * Get rid of 4096-entry limit in the simple menu system.
153 * New hierarchial submenu support: see MENU BEGIN, MENU END,
154 MENU GOTO in doc/menu.txt.
155 * MENU QUIT allows creating a menu entry for returning to the
156 command line.
157 * ISOLINUX: Work around bug in certain Adaptec BIOSes,
158 patch by Bruce Robson.
159 * pngtopnm dependency removed from samples/ directory.
160 * Text documentation files (in doc/) renamed *.doc -> *.txt.
162 Changes in 3.61:
163 * EXTLINUX: fix crash when accessing an empty file.
164 * elf.c32: If a PHDR segment is present, load it.
165 * Fix SHA-1 and MD5 passwords.
166 * ISOLINUX: fix booting when mastered without
167 mkisofs -boot-info-table (broken since 3.50, sigh...)
168 * Handle BIOSes which emit multiple contiguous valid
169 memory regions in the e820 map.
171 Changes in 3.60:
172 * Support for "auxilliary data vector", a small amount of
173 writable storage. Currently only supported for EXTLINUX,
174 but the infrastructure is there for the other derivatives,
175 assuming a suitable storage location can be found.
176 * EXTLINUX: boot-once support (--once, --clear-once, and
177 --reset-adv).
178 * A command is now required to the EXTLINUX installer, i.e. at
179 least one of --install, --update, --once, --clear-once, or
180 --reset-adv.
182 Changes in 3.55:
183 * PXELINUX: as per RFC 5071, PXELINUX no longer requires the
184 use of the magic cookie option (208) for unencapsulated
185 options. Currently it does not require it for
186 vendor-encapsulated options (vendor-option-space) either,
187 but that MAY be reverted in the future if it causes
188 problems.
189 * Documentation text files moved to a common "doc" directory;
190 man pages from the Debian project added to the "man"
191 directory.
192 * Correct bug with self-overlapping memory areas when using
193 the shuffle interface.
195 Changes in 3.54:
196 * Add "menu separator", "menu indent", "menu disabled"
197 (see README.menu).
198 * vesamenu: fix handing of VESA modes with noncontiguous
199 memory buffers. In particular, Qemu/KVM sets up such a mode
200 when Cirrus Logic emulation is enabled (which is the
201 default.)
202 * Support for calling real mode functions using far calls,
203 with argument on the stack. This was implemented to support
204 the BIOS BBS specification, but subsequent experiments show
205 that the at least one of the most common BIOS cores, Award,
206 passes the presence check but doesn't actually implement the
207 functionality.
209 Changes in 3.53:
210 * Fix bugs related to the $PnP BIOS functionality on some
211 platforms.
212 * PXELINUX: Fix the "naked" version of :: (suppress prefix.)
213 * elf.c32: better error messages.
214 * Faster operation under Intel VT virtualization.
215 * PXELINUX: Fix DHCP bootfile option.
216 * mkdiskimage: Support more than 1024 cylinders.
217 * (Hopefully) fix installer on non-x86 platforms.
218 * Fix shuffle_and_boot_rm, used by linux.c32.
219 * Fix shuffle_and_boot_pm on 386/486.
220 * ISOLINUX (at least): fix bss memory overwrite hang.
221 * MBR: Fix booting from logical partitions.
222 * Code cleanups.
224 Changes in 3.52:
225 * Handle capitalized F-key commands in the menu system.
226 * Fix padding error when loading multiple ramdisks.
227 * Workaround for VMware crashing when trying to print a
228 message during early kernel boot (does not seem to work,
229 consider deleting.)
230 * chain.c32: add the ability to search for a specific MBR
231 signature at runtime.
232 * Fall back to the server identity option if the siaddr field
233 in the DHCP header isn't set. This seems to match the
234 behaviour of most PXE stacks.
235 * mkdiskimage: give the generated disk image an MBR signature.
236 * MEMDISK: Fix failures on some BIOSes.
237 * Simple menu system: new "MENU HIDDEN" option to not display
238 the menu unless the user presses a key.
239 * Simple menu system: support MD5-encrypted passwords (modern
240 Unix standard style, with "$1$" prefixes.)
241 * pcitest.c32: now functions as a full "lspci". Thanks to
242 Erwan Velu for this work.
243 * MEMDISK: Make EDD actually work.
244 * ISOLINUX: Fix for certain broken CD-ROM BIOSes which
245 randomly corrupted register FS.
246 * Simple menu system: fix memory overwrite bug that caused
247 some systems to lock up or behave weirdly.
248 * Fix building on 64-bit systems without a 32-bit libc installed.
250 Changes in 3.51:
251 * EXTLINUX: Fix failure to find the configuration file.
253 Changes in 3.50:
254 * New keywords allow the type of file to be specified in the
255 configuration file.
256 * It is now supported to load a different configuration file
257 with the CONFIG keyword.
258 * Fix API call 0x0019 (Read Disk.)
259 * MENU AUTOBOOT, MENU TABMSG, MENU PASSPROMPT allows
260 internationalization of menu messages.
261 * A new feature, TEXT HELP, allows the administrator to set
262 a multi-line help message for individual selections.
263 * Fix API call 0x0012 (Cleanup, shuffle and boot.)
264 * New API call "Cleanup, shuffle and boot to flat protected mode"
265 * New API call "Cleanup, shuffle and boot to real mode",
266 similar to API call 0x0012 but allows arbitrary register setting.
267 * Introduce a library interface for loading arbitrary binary
268 formats with relatively easily understood code. See
269 the elf.c32 module for an example on how to use it.
270 * New module "elf.c32", to load a protected-mode ELF kernel.
271 * MBR (old and new): Fix bug in CHS mode when LBA >
272 65535*sectors.
273 * vesamenu: fix decoding of palettized PNG images.
274 * Update the Linux kernel boot protocol.
275 * PXELINUX: Press Ctrl-N at the boot prompt to read out the
276 network info.
277 * Instead of the (non-existent) MAC, use the client identifier
278 for networks like Infiniband and Firewire/1394.
279 * Add a new INCLUDE command to the core syslinux parser.
280 * Allow binding help text to F11 and F12.
281 * F-key help now available in the simple menu system.
282 * Disabled the polling for ARP during idle. It is simply too
283 slow on some (broken!) PXE stacks.
284 * PXELINUX: also try to fetch the config file based on UUID.
285 * SYSLINUX/EXTLINUX: New RAID mode (-r) which calls the BIOS
286 to load the next device (typically the next drive) on boot
287 failure.
289 Changes in 3.36:
290 * MEMDISK: Disable EDD by default on floppy disks. EDD can be
291 enabled with the "edd" option and disabled with "noedd".
292 This (hopefully) should make Ghost work again.
293 * SYSLINUX: "unix" installer now uses Linux ioctls instead of
294 using libfat.
295 * New MBR which can boot from logical partitions.
296 * SYSLINUX: Fix bug in detecting special extensions which was
297 introduced in 3.35 :(
298 * PXELINUX: Unbreak chainbooting FreeBSD (and possibly others.)
300 Changes in 3.35:
301 * MEMDISK: New "safeint" mode.
302 * MEMDISK: Be more compliant with the PnP BIOS spec.
303 * MEMDISK: Turn on EDD support by default.
304 * MEMDISK: Try to work on some machines on which it would not
305 work when there was no floppy drive in the system.
306 * Simple menu system: fix serial console support (broken in
307 3.30).
308 * SYSLINUX: Support subdirectories. Like ISOLINUX, the
309 "current directory" is the directory in which syslinux.cfg
310 is found; this is searched for in the sequence
311 /boot/syslinux, /syslinux, /. As a side benefit, label names
312 like "linux-2.6.18" and "linux-2.6.19" are now supported.
314 To install ldlinux.sys in a subdirectory, pass the -d
315 directory option to the SYSLINUX installer.
317 This work was sponsored by slax.org (thanks, Tomas!)
318 * New API call: read disk.
319 * Invoke ONERROR on initrd load failure.
321 Changes in 3.31:
322 * The simple menu system (menu.c32 and vesamenu.c32) now
323 support loading more than one configuration file at a time,
324 using MENU INCLUDE or by specifying multiple filenames.
325 * The MENU COLOR statement can now control the shadowing mode.
327 Changes in 3.30:
328 * libcom32 extended to support graphics mode and graphical console.
329 * vesamenu.c32, new graphical version of the Simple
330 Menu System, see README.menu.
331 * New com32 modules by Erwan Velu do selection based on CPUID
332 or PCI devices present.
333 * RPM spec: add syslinux-tftpboot module; move syslinux by
334 default to the /usr/share/syslinux directory.
335 * RPM spec: extlinux is now a separate package.
337 Changes in 3.20:
338 * EXTLINUX: New options --install (-i) and --update (-U), to
339 make it clear if a boot loader should be installed or
340 updated. For now, defaults to --install for compatibility;
341 a future version will require one of these options.
342 * New library functions to load and place files in memory.
343 * mboot.c32 bug fixes.
344 * Remove 8 MB kernel size restriction.
345 * Add "klibc" target for building unix/syslinux and
346 extlinux/extlinux with klcc (klibc-1.4.27 or later.)
347 * PXELINUX: Fail (and eventually reboot) if no configuration
348 file was found.
349 * COM32 module by Erwan Velu to make decisions based on DMI
350 info.
351 * Fix issue where going back and forth between menus a lot
352 would cause a hang.
353 * ISOLINUX: Fix bug which made "cd boot sectors" not work.
355 Changes in 3.11:
356 * MEMDISK: Fix bug by which accessing the real floppy disk
357 as B: in MS-DOS was broken.
358 * Simple menu system: allow tweaking of the screen layout.
359 * Simple menu system: better command-line editing, correctly
360 handle command lines above 256 characters.
361 * PXELINUX: revert memory allocation change that caused
362 problems on some network cards.
363 * MEMDISK: Try work around a bug on some BIOSes when no
364 physical floppy disk is present in the system.
365 * Enable the 16550A FIFOs, if present, when doing serial
366 console.
367 * New "totaltimeout" command establishes a timeout without
368 regard for any user input.
369 * Simple menu system: timeout behaviour now more in line with
370 user expectations.
371 * Simple menu system: "ontimeout" should now work correctly.
373 Changes in 3.10:
374 * gcc 4.0.1 compilation fixes.
375 * Add support for querying the PCI BIOS in libcom32
376 (used by ethersel et al.)
377 * Fix PCI handing (ethersel etc) on several old chipsets (and
378 VMWare.)
379 * Try to deal with systems with broken EBIOS.
380 * New API call to do "localboot".
381 * New API call to query features.
382 * New API call to run kernel image, a lower-level call than
383 "run command". See comboot.doc.
384 * Fix for bug in EBIOS code discovered by Arwin Vosselman.
385 * NOESCAPE security fix.
386 * Comments are now recognized even without a space following #.
387 * Fix incorrect handling of mixes of entries with and without
388 MENU PASSWD.
389 * The idle API call now harmlessly returns failure if it is a
390 no-op. That way the caller can decide whether or not to
391 bother invoking it again.
392 * Temporarily disable the idle API call on PXELINUX, due to
393 some platforms on which the idle API call seems to hang; this
394 problem has not yet been debugged.
395 * MEMDISK: the handling of DOSEMU-headered images was broken;
396 fix it.
397 * EXTLINUX: symlinks are now supported.
398 * Simple menu system: N and P now work correctly as hotkeys.
399 * MEMDISK: more BIOS bug workarounds.
401 Changes in 3.09:
402 * gcc4 compilation fix.
403 * <BEL> (Ctrl-G) in message files now causes a beep.
404 * Reduce the command line to 511 characters; 1023 caused
405 memory overflows.
407 Changes in 3.08:
408 * SYSLINUX: Fix performance regression (-s mode always
409 enabled.)
410 * Add API function for idle loop.
411 * libutil: Add do_idle() function for idle loop, make
412 get_key() use it.
413 * libutil: Add SHA-1 and base64 functions.
414 * Simple menu system: add password support.
415 * EXTLINUX: Sparse files now handled correctly.
416 * EXTLINUX: Large directories now handled correctly.
417 * ALL: At the prompt, Ctrl-X now forces text mode.
418 * Fix configuration file parsing error, that could cause
419 hangs.
420 * Rewritten advanced menuing system from Murali Ganapathy.
421 * MEMDISK: New "bigraw" mode to work around certain broken
422 BIOS flash programs.
423 * COM32 module to boot Multiboot systems, including Xen. See
424 com32/modules/mboot.doc.
425 * Max command line changed to 1023 characters. Note that the
426 kernel proper still can only handle 255 characters without
427 patching, and COM16 binaries can only handle 125 characters.
429 Changes in 3.07:
430 * Fix chainloading (chain.c32).
431 * Fix zlib build problem.
432 * Use a private copy of <linux/ext2_fs.h>.
434 Changes in 3.06:
435 * Fix typo that caused the ramdisk to load in the wrong place.
437 Changes in 3.05:
438 * New API function "shuffle and boot"; allows COM32 modules to
439 load or construct (almost) arbitrarily complex objects,
440 e.g. a kernel and its initrd/initramfs in pieces, and have
441 the API core reorganize memory for booting. (A library API
442 for this function will be introduced in a later version.)
443 * The initrd= option now supports multiple filenames separated
444 by commas. This is mostly useful for initramfs, which can
445 be composed of multiple separate cpio or cpio.gz archives.
446 (Note: all files except the last one are zero-padded to a 4K
447 page boundary. This should not affect initramfs.)
448 * EXTLINUX: Fix API function 000Ah (get derivative-specific
449 info).
450 * libcom32/ethersel: Support PCI Config Mechanism #2 on
451 machines still infested with that hideous old hack.
452 * SYSLINUX: Fix directory-parsing bug.
454 Changes in 3.02:
455 * SYSLINUX: The "unix" installer now sets the MS-DOS
456 attributes (hidden, system, readonly.)
457 * COM32 library: build the .lnx (test modules for running
458 under Linux) as architecture native modules, in case
459 i386 devel libraries aren't installed.
460 * EXTLINUX: Hack for systems which don't have BLKGETSIZE64
461 defined in the standard header files.
462 * Simple menu system: minor aestetic improvements, and try to
463 work better over a serial console (speed, and readability on
464 monochrome terminal emulators.)
465 * New CONSOLE directive to control output on the video console
466 (useful for dealing with some broken serial-forwarding
467 BIOSes.)
468 * New com32 module "ethersel" for searching for an Ethernet
469 card and selecting the proper version of Etherboot.
470 * EXTLINUX: Allow the user to override the detected geometry.
471 Add help.
473 Changes in 3.01:
474 * EXTLINUX, SYSLINUX: Fix compile errors on some systems.
475 * EXTLINUX: Default to zipdrive geometry (64 heads, 32
476 sectors) if no other geometry can be detected.
478 Changes in 3.00:
479 * SYSLINUX: Support FAT32 and EDD. As an unfortunate
480 consequence, LDLINUX.SYS is no longer an ordinary file; it
481 is block-mapped at install time, which means it can only be
482 written using the syslinux installers.
483 * SYSLINUX: Reorganize the source code for the installers;
484 each one of the installers (dos, win32, unix, mtools) is now
485 built in its own subdirectory. In particular, "mtools" is
486 the unprivileged installer which uses mtools; "unix" is the
487 privileged installer which uses system calls.
488 * SYSLINUX: Completely rewritten DOS installer in C.
489 * ALL: "label" statement information is now stored in a
490 compressed format, which means that a lot more labels are
491 permitted (500-1000 in a typical configuration, but depends
492 on the complexity.)
493 * EXTLINUX: New derivative, which boots from an ext2/ext3
494 filesystem.
495 * SYSLINUX: The DOS and Win32 installers can now optionally
496 write the boot sector to a file instead of the real boot
497 sector. This is not supported in the Linux installers,
498 however.
499 * ALL: New NOESCAPE command, disables the "hold down the Shift
500 key to display the prompt" behaviour.
501 * New simple menu system, as an alternative to the advanced
502 menu system already present. See README.menu for details.
503 * PXELINUX: Filenames can now be prefixed with an IP address
504 or DNS name plus :: (e.g. 192.0.2.1::filename or
505 server.domain.com::filename), which downloads a file from an
506 alternate TFTP server, or just a :: (e.g. ::filename), which
507 suppresses the common pathname prefix. See pxelinux.doc.
508 * SYSLINUX: Add an -m option to the DOS and Win32 installers
509 to write an MBR and -a to mark the partition SYSLINUX is
510 being installed on active.
511 * MEMDISK: Give a way to query the boot loader type while
512 running MEMDISK; see memdisk/memdisk.doc and
513 sample/mdiskchk.c.
514 * mkdiskimage: substantially improved mkdiskimage which, among
515 other things, can now be used to initialize USB keys as
516 zipdrives; see README.usbkey for more information.
518 Changes in 2.13:
519 * MEMDISK: Fix command-line parsing "brown paper bag" class
520 bug.
521 * MEMDISK: Add "raw" mode to support the DOS boot disk from
522 WinME/XP, which seems to deliberately crash the system
523 when someone uses the "INT 15h mover" highmem API.
524 * Make "make install" do something sane for the com32
525 development environment.
526 * In the spec file, create a separate -devel RPM for the com32
527 development environment.
529 Changes in 2.12:
530 * Simple C library, based on klibc, for writing COM32
531 programs.
532 * Fix the handling of file length in loading of COM32
533 programs.
534 * MEMDISK: Work around a linker bug by rearranging the code to
535 not use the linker for the 16-bit code.
536 * SYSLINUX: If we're building on a machine without a Win32
537 (mingw) compiler, just skip building syslinux.exe.
538 * ISOLINUX: Support non-mkisofs mastering programs, at least
539 as long as the image is single-session. For best results,
540 ISOLINUX should be the only boot loader installed.
541 * MEMDISK: Allow the user to specify that the simulated disk
542 should be write-protected.
544 Changes in 2.11:
545 * ALL: Add an API call to get the configuration file name.
546 * SYSLINUX: Fix bug in 2.10 that prevented it from working
547 correctly for a lot of people.
548 * SYSLINUX: In the installer, make mtools a bit less fussy.
549 * Make the menu system compile with newer gcc's.
551 Changes in 2.10:
552 * MEMDISK: Handle images compressed with zip as well as with
553 gzip. Some Windows-based image tools apparently generate
554 these kinds of images by default. Patch by Patrick
555 LoPresti.
556 * Major menu improvement from Murali Ganapathy.
557 * ISOLINUX: Wonderfully sick and brilliant workaround for
558 severe bugs in certain Award BIOSes; from Knut Petersen.
559 * SYSLINUX: Fix for the nomtools installed, from Frederic
560 Pasteleurs.
561 * PXELINUX: Fix handling of IP numbers in the ranges
562 100-109 and 200-209.
563 * ALL: New option "allowoptions" (defaults to 1), which
564 controls if options are allowed on the command line or not.
565 * SYSLINUX: Support building under klibc (see the klibc
566 distribution for details.)
568 Changes in 2.09:
569 * SYSLINUX: Remove residual setuid crap from
570 syslinux-nomtools.
571 * Handle video pages correctly when using the API functions.
572 * Handle compiling on an x86-64 platform correctly.
573 * Menu system from Murali Krishnan Ganapathy; see the menu
574 directory for information.
575 * COMBOOT: Allow COMBOOT programs to change screen text mode.
576 * COMBOOT: Correct the documentation of how to detect
577 SYSLINUX from COMBOOT!!!!
578 * COMBOOT: Fix "get key without echo" API function.
579 * SYSLINUX: Fix bug that affected the API open function.
580 * ALL: Improve the E820 memory parser, to work around some
581 buggy BIOSes.
583 Changes in 2.08:
584 * Add new configuration command "ontimeout" to allow timeout
585 to have a different action than just pressing Enter.
586 * Add new configuration command "onerror" to allow a custom
587 command to be executed in case the kernel image is not found.
588 * Fix bugs in the COMBOOT/COM32 command-line parsing. APPEND
589 now works with COMBOOT/COM32 images.
590 * PXELINUX: Poll for ARP requests while sitting at the
591 prompt. This makes some boot servers a lot less unhappy.
592 * PXELINUX: Actually free sockets when we get a failure
593 (including file not found.) This bug would cause us to run
594 out of sockets and thus "go deaf" after a while.
595 * MEMDISK: Add an API to query for the existence of MEMDISK.
596 * SYSLINUX: Fix loading boot sectors (.bs/.bss) from floppy
597 disk.
598 * .c32 is now one of the extensions searched for
599 automatically.
600 * PXELINUX: RFBG.exe seems to randomly overwrite memory
601 location 0x5700. Thus, don't use it!
602 * PXELINUX: Change pathname length max from 63 to 127; change
603 max vkernels from 128 to 64.
604 * Support Ctrl-U -> kill entire command line input.
605 * The "samples" directory contains a (barely at all tested)
606 chain loading example, chain.c32, which may be used to
607 chainload local floppy disks and hard disks. Use with
608 "chain fdN" or "chain hdN [partition]"; N = 0 for the first
609 drive of each type.
611 Changes in 2.07:
612 * MEMDISK: Workaround for BIOSes which go into a snit when
613 they get a RESET command for the floppy system when there is
614 no floppy in the system.
615 * PXELINUX: Add "ipappend 2", which passes the hardware
616 address of the boot interface to the kernel as a
617 command-line option.
618 * mkdiskimage: fix the generation of the end limit.
619 * PXELINUX: Fix multiple bugs in chainloading of other NBPs.
620 * MEMDISK: Fix bug that would occationally cause "ran out of
621 input data" when using compressed disk images.
622 * SYSLINUX: Updates for the win32 installer (from Lars Munch.)
623 * PXELINUX: PXELINUX-specific options are now recognized both
624 in a vendor-option-space (a.k.a. type 43 encapsulated) as
625 well as in a site-option-space (unencapsulated.)
626 * COM32: Don't crash when DS != 0.
627 * COMBOOT/COM32: Make file reading work correctly. Thanks to
628 Phung Chi Kien for submitting a test program.
630 Changes in 2.06:
631 * ALL: Fix problem that would occationally cause a
632 boot failure, depending on the length of the kernel.
633 * ISOLINUX: Fix problem that would occationally cause a
634 boot failure, depending on the length of directories.
635 * SYSLINUX: Win32 installer now flushes buffers.
636 * ppmtolss16: Be fully compliant with the PNM spec;
637 actually process comments in the header and odd
638 alignments of the various parameters, as well as
639 "plain" (not raw) files and PBM and PGM files.
640 * PXELINUX: Lower the default MTU to 1472 in order to deal
641 with systems with slightly nonstandard MTUs, and PXE
642 stacks which don't defragment correctly. Unfortunately this
643 is very hard to test dynamically.
645 Changes in 2.05:
646 * PXELINUX: Add a default query based on the hardware address
647 of the boot device. This is in lower case hexadecimal form
648 separated by dashes and including the hardware type, for
649 example, the Ethernet (type 1) address 88:99:AA:BB:CC:DD
650 would query the file pxelinux.cfg/01-88-99-aa-bb-cc-dd.
651 * PXELINUX: Fix bug involving non-IP-based config file names.
652 * SYSLINUX: New installer for WinNT-based systems, from Lars
653 Munch.
654 * MEMDISK: Fix handling of memory region overlap when
655 decompressing. Thanks to Mikhail Kupchik for identifying
656 the problem.
658 Changes in 2.04:
659 * ALL: Reclaim even more low memory by observing that
660 comboot_seg == real_mode_seg is perfectly fine, and by the
661 fact that the 1000h segment managed to get unused in all
662 derivatives...
663 * PXELINUX: Attempt to negotiate full Ethernet-sized blocks
664 (1468 bytes) using the blksize option.
665 * SYSLINUX: Resurrect the old no-mtools version of the
666 installer, although as a root-only tool. Some distributors
667 have indicated that they need a small standalone installer.
668 * MEMDISK: Fix a memory offset computation error when
669 installing compressed disks which generally would cause
670 1 MB of memory to be wasted.
671 * MEMDISK: Fix installing the E820 memory map. Calling
672 INT 15h AX=0E820h with MEMDISK 2.03 loaded would give a
673 completely corrupt memory map.
674 * SYSLINUX: Make libsyslinux a dynamic library, so that it can
675 be updated separately from client programs. The whole idea,
676 after all, is to enable alternate programs to become
677 syslinux installers.
678 * Include an rpm spec file in the distribution, so rpmbuild
679 -ta works.
681 Changes in 2.03:
682 * Actually support comment lines in the configuration file.
683 * PXELINUX: Try to resolve some problems with stack switches.
684 * PXELINUX: Handle PXE stacks with broken routing.
685 With these workarounds, the remote install PXE boot floppy
686 (rbfg.exe) from Argon Technologies should work correctly.
687 * Fix problems with Perl scripts in UTF-8 locales.
688 * You probably need NASM 0.98.34 or later to compile this
689 version. 0.98.36 is recommended.
690 * MEMDISK: Now supports gzip compressed images.
692 Changes in 2.02:
693 * SYSLINUX: Security flaws have been found in the SYSLINUX
694 installer when running setuid root. Rewrite the SYSLINUX
695 installer so it uses mtools instead. It therefore now
696 requires mtools (specifically mcopy and mattrib) to exist on
697 your system, but it will not require root privileges and
698 SHOULD NOT be setuid.
700 Changes in 2.01:
701 * MEMDISK: Fix memory sizing bug when the ramdisk crosses the
702 16 MB boundary.
703 * MEMDISK: Add a "pause" option to stop immediately before
704 booting, to read off the messages.
705 * MEMDISK: Support disk images with DOSEMU headers.
706 * Update the mkdiskimage script to handle newer mtools
707 versions, and be able to generate disk images with DOSEMU
708 headers (controlled by the -d option).
709 * Fix the COM32 sample program.
710 * PXELINUX, ISOLINUX: Fix some COMBOOT API calls.
711 * PXELINUX: Doc fix.
712 * Build SYSLINUX into a small library for encapsulation into
713 other programs (however, please keep in mind this is a GPL'd
714 library.)
715 * SYSLINUX: Make installer work with "owner" in /etc/fstab.
716 * SYSLINUX: Fix issue with working on nonpartitioned hard disk
717 devices. THIS CONFIGURATION IS NOT RECOMMENDED.
719 Changes in 2.00:
720 * ALL: Add support for "COM32" (32-bit COMBOOT) images.
721 * ALL: Add an API for COMBOOT/COM32 images. See comboot.doc
722 for details. There is a C development environment for
723 COM32 being created; it should be ready at some point in
724 the future.
725 * Fix mbr.asm so that it actually works.
726 * SYSLINUX: The syslinux installer *SHOULD* now be safe to
727 run setuid root.
728 * PXELINUX: Fix bug where PXELINUX would override random
729 chunks of the UNDI code segment! Thanks to Kevin Tran for
730 finding this bug.
731 * ISOLINUX: Fix a bug related to slashes in pathnames.
732 * ISOLINUX: Fix a bug in handling initrds over 128 MB.
733 * ALL: Make the <Ctrl-V> key print out the version; this is
734 to help debugging.
735 * Add a small script, mkdiskimage, to create a DOS-formatted
736 hard disk image using mtools. This may be useful in
737 conjunction with MEMDISK.
738 * ISOLINUX: Search for a /boot/isolinux directory as well as
739 /isolinux.
740 * ALL: Fix a bug related to very long configuration files.
741 * PXELINUX: Work around a NASM bug which would result in no
742 delay before reset if an error occurs.
744 Changes in 1.76:
745 * ISOLINUX: Remove code no longer used which caused hangs on
746 some Toshiba laptops.
748 Changes in 1.75:
749 * ALL: NASM 0.98.32 or later is now required to build
750 SYSLINUX from sources.
751 * SYSLINUX: put back in the workaround for the BIOS floppy
752 table. This seems to be a requirement for "extended" floppy
753 formats to work correctly.
754 * SYSLINUX: No longer warn if one is trying to boot on a 286
755 or older. The above BIOS workaround no longer fits if the
756 requirement to use only 8086-compatible code in the early
757 boot is maintained. It made sense in 1994, but in 2002 a
758 286 or older is a museum object.
759 * SYSLINUX: Use a downright bizarre, stateful algorithm to try
760 to guess the maximum transfer size. I am *hoping* this will
761 cut down on the number of systems for which -s is required
762 to work at any acceptable speed.
763 * ISOLINUX: Add a few more workarounds for various broken El
764 Torito BIOSes.
765 * Make sure .depend files aren't accidentally packed...
766 * ALL: Fix bugs in the extension-detect code; this caused
767 files like COMBOOT images and CD boot sectors to be
768 mis-identified as Linux kernels and rejected.
769 * ALL: Fix the return from COMBOOT.
770 * ALL: Do some of the early groundwork for supporting DOS
771 system calls in COMBOOT.
772 * Get rid of unnecessary "near" directives, making the code
773 bigger.
774 * PXELINUX: Put the PXE stack back in the init state before
775 invoking a chain-loaded NBP.
776 * PXELINUX: Actually found the combination of calls that
777 allows some (most?) PXE 2+ stacks to be unloaded from memory
778 properly.
779 * PXELINUX: Add "keeppxe" command-line option to disable
780 the standard unloading of the PXE stack.
782 Changes in 1.74:
783 * SYSLINUX: fix bug that would cause valid kernel images to be
784 labelled "invalid".
786 Changes in 1.73:
787 * Work on removing gratuitous differences between modules.
788 * Break up the source in common and module-specific files.
789 * PXELINUX: Allow chaining of other PXE NBPs.
790 * ISOLINUX: Allow loading "CD-ROM boot sectors".
791 * ALL: generalize the definition of a boot sector/NBP.
793 Changes in 1.72:
794 * PXELINUX, ISOLINUX: Fix bugs in the new core code.
796 Changes in 1.71:
797 * Fix a "brown paper bag" class bug in the new core code.
799 Changes in 1.70:
800 * Major code restructuring.
801 * Relax the conventional memory limits somewhat.
802 * MEMDISK: Set up the "version number string" pointer in the
803 header correctly.
804 * SYSLINUX: Fix, again, "the bug that won't die": the use of
805 the offset parameter with the SYSLINUX installer.
806 * SYSLINUX: Fix possible superblock corruption problem in the
807 SYSLINUX installer.
809 Changes in 1.67:
810 * Handle bug in the location of initrd.
812 Changes in 1.66:
813 * MEMDISK: Make compile with newer versions of gcc.
815 Changes in 1.65:
816 * ISOLINUX: Support booting disk image files (to boot DOS or
817 other non-Linux operating systems), *IF* the BIOS works
818 correctly; unfortunately many BIOSes apparently don't.
819 * Support Linux boot protocol version 2.03 (explicitly
820 specify the initrd address limit.)
821 * Handle small "pseudo-kernels"; images that use the Linux
822 kernel boot protocols but are less than 64K in size.
823 * MEMDISK: New subsystem; this is a driver which allows
824 legacy OSes to boot using an in-memory simulated disk.
825 See memdisk/memdisk.doc for more info.
826 * PXELINUX, ISOLINUX: Correctly handle files larger than 65535
827 blocks (32 MB for PXELINUX, 128 MB for ISOLINUX.)
828 * PXELINUX: Make a best-effort attempt at freeing all memory
829 claimed. From the looks of it, it will fail on most PXE
830 stacks.
832 Changes in 1.64:
833 * Limited support for hardware flow control when using a
834 serial port console.
835 * Support specifying the serial port I/O address explicitly.
836 * Make DOS installer hopefully behave more nicely when used on
837 recent Windows versions.
838 * Fix returning to text mode when a font has been specified.
839 * Attempt to detect missing serial port hardware and disable
840 the serial port if there is nothing there.
842 Changes in 1.63:
843 * Make the ppmtolss16 program handle color conversion more
844 correctly.
845 * Clean up "make install" target, honour INSTALLROOT if it
846 exists.
847 * SYSLINUX: Fix stack-smash bug identified by Steffen
848 Winterfeldt.
849 * Hopefully fix return-to-text-mode on some graphics cards.
850 * ISOLINUX: Bug workaround for Award BIOS 4.51, and perhaps
851 other buggy BIOSes as well.
853 Changes in 1.62:
854 * PXELINUX: Allow the DHCP server to override the
855 configuration file name and pathname prefix, using
856 "site-specific" DHCP options.
857 * PXELINUX: Documentation fixes.
858 * PXELINUX: Fix the "ipappend" option; the last two values
859 were reversed vs. what the kernel expected.
860 * Introduce a way to return to text mode once we are already
861 in graphics mode. This may be useful for F-key help
862 screens.
863 * Fix several bugs in the way return to text mode was handled.
865 Changes in 1.61:
866 * ISOLINUX: Support full pathname searches. Max length for a
867 pathname is 255 characters. As a result, only 64 "label"
868 statements are supported in ISOLINUX.
869 * PXELINUX: Max filename length extended to 63 characters.
871 Changes in 1.60:
872 * Add support for graphical splash screens.
873 * Add mode control characters, which allows you to control
874 message display output depending on output mode (text,
875 graphics, or serial port.)
876 * ISOLINUX: New program, which boots Linux from a CD-ROM
877 without using floppy emulation mode. See isolinux.doc for
878 more details.
879 * PXELINUX: Don't search for boot sector file types, since
880 they don't work anyway.
881 * SYSLINUX: Document the LOCK command for Win9x, and the error
882 dialog box for WinNT/2K.
884 Changes in 1.54:
885 * PXELINUX: Fix code for finding !PXE from PXENV+. This was
886 due to a spec bug; match the most recent spec since that
887 seems to be what implementations actually do.
888 * SYSLINUX: Add some smarts to the boot sector, which
889 hopefully should reduce the number of systems which require
890 stupid mode ("syslinux -s").
891 * PXELINUX: Document further some of the pathologies with old
892 PXE stacks.
893 * When specifying a "default" command line, no longer
894 automatically appent "auto". See the "DEFAULT" command in
895 syslinux.doc for more information.
896 * PXELINUX: Clean up the allocation of local socket numbers.
898 Changes in 1.53:
899 * PXELINUX: Rename pxelinux.bin to pxelinux.0, to match what
900 most PXE servers seem to expect.
901 * PXELINUX: Update the DHCP/boot server setup documentation.
902 * PXELINUX: Support new "localboot" option for "label"
903 sections.
904 * PXELINUX: More robust parsing of DHCP/boot server packets.
905 * PXELINUX: Include a small utility program "gethostip" to
906 compute hexadecimal IP addresses.
908 Changes in 1.52:
909 * PXELINUX: Fix bugs introduced by new A20 code. (SYSLINUX
910 has also been changed for code consistency reasons, but I'm
911 pretty sure the changes are don't care on SYSLINUX.)
912 * Documentation updates.
913 * PXELINUX: Add "ipappend" option to generate an ip= option to
914 the kernel.
916 Changes in 1.51:
917 * PXELINUX: Not all PXE stacks fill in the IP address for a
918 type 3 cached info query. Use a type 2 cached info query
919 for this information (only.)
920 * Yet another attempt at A20 coding. Now support BIOS call
921 15:2401 as well, and handle machines which always have A20
922 on separately.
923 * Support memory detection using INT 15h, AX=0E820h. BIOS
924 manufacturers have apparently gotten sloppy about keeping
925 INT 15h, AX=0E801h working properly.
926 * Don't issue <CR><LF> onto the serial port when we're doing
927 screen wraparound.
929 Changes in 1.50:
930 * Yet another A20-code update. It seems some "legacy-free"
931 machines and embedded gear simply don't have a KBC to talk
932 to, and that waiting for one will wait forever. Sigh.
934 Changes in 1.49:
935 * SYSLINUX: Implement a hack for BIOS drivers which hog significant
936 chunks of low memory during boot. (Note: PXELINUX already
937 had this modification. SYSLINUX does still require that the
938 low 512K is available; PXELINUX requires 384K. Machines
939 with a physical memory hole in the low 640K cannot boot
940 Linux no matter what.) Depending what the reason is for the
941 memory hole, a new kernel (2.4.0-test3-pre3 or later) may be
942 required.
943 * SYSLINUX: Default installer binary now compiled against
944 glibc 2.1. If this is inappropriate for your system and you
945 still want to use the offical version of SYSLINUX, please
946 follow the instructions in "distrib.doc" to rebuild the
947 installer.
948 * SYSLINUX: Linux installer program now supports -o <offset>
949 option which does a loopback mount with the
950 -o loop,offset=<> option. Useful to run SYSLINUX on an
951 individual partition of a whole-harddisk image.
952 * Include the source code to a Master Boot Record (MBR)
953 functionally equivalent to the one installed DOS except it
954 includes EBIOS support, and should be resistant to geometry
955 changes. The MBR code is public domain.
956 * PXELINUX: Fix "double p" bug: if the tftp prefix was null,
957 all filenames would get a "p" preprended, e.g.
958 "ppxelinux.cfg" and "pvmlinux".
960 Changes in 1.48:
961 * PXELINUX: Workaround for PXE ROMs based on the Intel PXE PDK
962 3.0 build 071 and earlier: missing !PXE structure pointer.
963 * PXELINUX: Handle larger BOOTP/DHCP packages.
964 * PXELINUX: The command line passing was broken; fix.
965 * PXELINUX: Make COMBOOT images work.
966 * PXELINUX: Documentation on how to make booting work using
967 the PDK 3.0-derived clients, which aren't so generous as to
968 allow booting with only "PXEClient" specified.
970 Changes in 1.47:
971 * PXELINUX: RFC 1123 states that a TFTP implementation MUST
972 use adaptive timeout, "at least an exponential backoff of
973 retransmission timeout is necessary." Implement a very
974 simple exponential backoff for retransmits.
975 * PXELINUX: Updated documentation, including pointer to new
976 TFTP server.
977 * PXELINUX: When sending ERROR due to bad OACK, use the proper
978 destination port number (why are TFTP port numbers so odd?)
979 * PXELINUX: If the boot dies in the middle somewhere,
980 eventually give up and reset the machine (unattended
981 operation.)
983 Changes in 1.46:
984 * New program PXELINUX to do network booting using a
985 PXE-compliant (Pre-Execution Environment) network booting
986 PROM. See pxelinux.doc for details.
988 Changes in 1.45:
989 * Serial console support. See syslinux.doc for details.
991 Changes in 1.44:
992 * Change HIGHMEM_MAX to 38000000h to (hopefully) avoid the
993 kernel stepping on it; 3f000000h was apparently a higher
994 limit than the kernel used!
996 Changes in 1.43:
997 * Add sys2ansi.pl script to display the contents of a
998 colorized SYSLINUX file.
999 * Changed the io_delay once again, after a report that the
1000 old delay port causes hangs on some systems.
1002 Changes in 1.42:
1003 * Frob the "fast A20 gate" port as well as the keyboard
1004 controller; will this help systems with problems?
1005 * Be even more paranoid about A20, unfortunately even this
1006 seems to be not paranoid enough... what I don't understand
1007 is that if there is hardware out there *this broken*, how
1008 can it run Linux at all? Report an error message rather
1009 than hang forever if A20 is stuck.
1010 * Include some intermediate files in the distribution, plus
1011 provide a "make installer" target for distributors to relink
1012 the install programs only. I would prefer the syslinux boot
1013 loader proper to be "binary clean" for debuggablity -- use
1014 "make clean ; make installer" to rebuild the installers only.
1016 Changes in 1.41:
1017 * Don't get confused by directories, volume labels, or VFAT
1018 long names.
1019 * Use INT 15h, AX=0E801h to query memory size before trying
1020 INT 15h, AH=88h. This not only provides more headroom
1021 between the kernel and the initrd on large-memory machines,
1022 but it appears some recent BIOSes actually have started
1023 returning garbage for the AH=88h (older) call.
1024 * Trust high memory beyond the 15 MB mark if the user has
1025 specified it, or if obtained with INT 15h, AH=0E801h (with
1026 no memory holes above 1 MB.)
1028 Changes in 1.40:
1029 * Increase A20M delay and put in a test to avoid problems on
1030 certain IBM Thinkpads (thanks to Donnie Barnes of RedHat
1031 for vital info on this one.)
1032 * Support COMBOOT style boot command images.
1033 * Support chain loading (foreign operating systems, e.g. DOS).
1034 * Include a new "copybs" DOS utility to copy a boot sector to
1035 a file (under Linux, use "dd".)
1036 * Fix the DOS installer to work for disks over 32 MB.
1037 * SYSLINUX should now handle disks with more than 65536 tracks.
1039 Changes in 1.37:
1040 * Fix a bug that caused "label" statements in syslinux.cfg to
1041 not be handled properly.
1042 * Updated the documentation. Among other things, we now allow
1043 up to 128 "label" statements.
1045 Changes in 1.36:
1046 * Fix for booting old (pre-initrd) kernels.
1047 * It seems at least some versions of OS/2 doesn't set up all
1048 the fields in the superblock correctly. Account for that.
1049 * Fix bug that caused boot failure when using the mem= option.
1051 Changes in 1.35:
1052 * Loading from partitions now should work properly. (Actually
1053 tested, this time. You should even be able to dd a floppy
1054 to a partition and boot from it.)
1055 * Removed large workaround code for an alleged ancient BIOS
1056 bug I have never actually seen. The -s option should work
1057 on those machines, anyway.
1058 * Support for simple keyboard remappings, same as used by
1059 LILO (once again to support localization.) The program
1060 keytab-lilo.pl from the LILO distribution included to
1061 generate such maps.
1062 * Added a "safe, slow and stupid" (-s) option to the
1063 installers. This option will lobotomize the boot sector to
1064 hopefully work on even very buggy BIOSes.
1066 Changes in 1.34:
1067 * Ability to load a VGA font on bootup (for localized Linux
1068 distributions.)
1070 Changes in 1.33:
1071 * Bug fix in the Linux installer.
1072 * Added a workaround for a bug in certain AMI/Intel BIOSes
1073 when booting from CD-ROM.
1074 * Documentation changes.
1076 Changes in 1.32:
1077 * FAT16 filesystems are now supported.
1079 Changes in 1.31:
1080 * Now compiles under Linux, using NASM, rather than using
1081 Turbo Assembler under DOS. See http://www.cryogen.com/Nasm
1082 for information about NASM.
1083 * Linux-hosted SYSLINUX installer, as well as a
1084 rewritten DOS installer (now is written in assembler, so we
1085 don't need Turbo C.)
1087 Changes in 1.30:
1088 * Added support for loading bzImage and initrd loading, and made
1089 SYSLINUX new-setup-code aware (SYSLINUX 1.30 id=0x31).
1090 * Added LILO-style kernel labels; see the LABEL and IMPLICIT
1091 keywords in README file.
1092 * Added support for colorization of intro and help screens.
1093 * The vga= option is now handled correctly.
1094 * Massive rewrite of large chunks of the code in order to
1095 support the first two new features.
1097 Changes in 1.20:
1098 * Added simple online help at the "boot:" prompt.
1099 * Removed 2880K image as I no longer have access to such a
1100 floppy drive. (Donations accepted!!)
1101 * Decided to distribute the source in a subdirectory rather
1102 than in a nested zipfile.
1104 Changes in 1.11:
1105 * Removed a sanity check which would cause booting to fail on
1106 Phoenix BIOS version 4.03. Apparently this BIOS is buggy.
1108 Changes in 1.10:
1109 * Added configuration file SYSLINUX.CFG. This file contains all
1110 configurable options, and can be edited from any OS which can
1111 access an MS-DOS filesystem; there is no longer a need to run
1112 SYSLINUX.EXE except to write the boot sector.
1113 * Default command line now given by "default" line in config
1114 file.
1115 * LINUXMSG.TXT and BOOTMSG.TXT hard-coded file names replaced by
1116 "display" and "prompt" lines in config file.
1117 * LILO-style option appending now supported ("append" line in
1118 config file).
1119 * Prompt timeout is now supported ("timeout" line in config
1120 file). The timeout is cancelled when anything is typed on the
1121 command line.
1122 * Pressing <ESC> or <Ctrl-C> at the Loading... stage now aborts
1123 the kernel loading in progress and returns the user to the
1124 boot: prompt.
1125 * The installer now automatically sets the READONLY flag on
1126 LDLINUX.SYS.
1127 * Added 2880K disk image.
1129 Changes in 1.03:
1130 * Fixed bug that would prevent booting from double-density
1131 floppies and other DOS filesystems with multiple sectors per
1132 cluster.
1133 * Added 720K disk image.
1134 * Changed default kernel name on disk images to LINUX.
1136 Changes in 1.02:
1137 * Fixed bug that would garble the command line on recent kernels
1138 with more than 4 sectors of setup code (this wasn't really a
1139 *bug*; rather, a kernel change broke the code. Unfortunately
1140 the Linux boot interface is still sorely undocumented).
1141 * Added BOOTMSG.TXT file support (message file which does not
1142 force display of the boot prompt).
1144 Changes in 1.01:
1145 * Fixed bug on some (most?) 386 BIOSes would require two boot
1146 attempts.