Changes from version 21-3 to 21-4 (20-Mar-2000) -- John Coffman

  Boot loader
  -----------
    - bugfix in 'read.S' that disabled the combination 'linear' with
      'compact' ( '-l' and '-c' together).
      
      
Changes from version 21 to 21-3 (24-FEB-2000)  -- John Coffman 
-----------------------------                  <johninsd@san.rr.com>

  Boot loader
  -----------
  
    - will boot from disks up to 2048Gb in size, as long as the BIOS allows
      the Enhanced BIOS calls for 32-bit sector addressing using packet calls.
    - checks if BIOS supports packet calls (int 0x13, AH=0x42), and uses
      these calls if 'lba32' was specified.  Otherwise, it uses
      the C:H:S addressing scheme of the original IBM-PC BIOS.
    - the disk read routine is separated into its own source file, "read.S",
      which is included in the first-stage, and second-stage loader codes.
      The first stage loader uses a very stripped down read routine, since it
      only deals in single sector transfers.
    - if BIOS does not support 32-bit packet calls, and the cylinder address
      overflows when the 32-bit address is converted to C:H:S, then a "9f"
      error code is issued.

  Map installer
  -------------
  
    - added the '-L' command line switch and 'lba32' configuration file 
      global option.  
    - map compaction of 'lba32' addresses is supported with the existing
      '-c' switch (or 'compact' configuration file global option).
    - floppy disks now will always fall back to C:H:S addressing.
    - changed the -v option to now accept a single digit to set the verbosity
      level; e.g., 'lilo -v 5 ...' replaces 'lilo -v -v -v -v -v ...'
      for maximum diagnostic output.
    - LILO version information is moved to the file 'version.h', and VERSION
      is now deleted.  This allows for tracking of VERSION_MAJOR (=21) and
      VERSION_MINOR (=3) for this and future code paths.
      
  BIOS tester
  -----------
  
    - Inspired by 'dparam.com', a much more extensive BIOS test program is
      included with this version.  Called 'disk.com', it was developed 
      under DOS, and requires 'nasm' to be assembled.
    - DISK.COM will probe the BIOS for disks supported by the BIOS, and report
      on their CHS geometry.  If EDD is supported, the EDD geometry is also
      reported.  If disks with cylinder numbers of 1024 or above are detected,
      it will issue a recommendation to use LILO with the 'lba32' option.
    - Creation of the bootable floppy image version of this utility is in-
      complete at this time.
      
    
Changes from version 20 to 21 (5-DEC-1998)
-----------------------------

  Boot loader
  -----------

    - cylinder calculation could overflow when using LINEAR (fix by Jonas
      Aaberg and an anonymous contributor)
    - first-stage loader code begins with the byte 0xFA (a CLI instruction).
      This works around the "INACCESSIBLE_BOOT_DEVICE" blue screen bug of
      Windows NT 4 (reported by too many people to mention)
    - new build-time option LARGE_EBDA to load boot loader in the 0x8xxxx area
      instead of the 0x9xxxx area (disabled by default; problem reported by
      Josef Moellers)

  Map installer
  -------------

    - new build-time option USE_TMPDIR to honor TMPDIR when creating temporary
      devices (disabled by default)
    - now only 0x1b6 bytes of the boot sector are overwritten, which preserves
      the passwords DR DOS stores there (fixed by Roy Millar)
    - -u and -U accidently implied -v
    - "BIOS drive 0xNN may not be accessible" warning was printed in cases
       where the drive code was never used (fixed by Andries Brouwer)
    - change rule for DOS16_big incorrectly used DOS16_small_hidden when
      hiding (fixed by Anthony Richardson)
    - RESET in CHANGE-RULES did not remove default rules (fixed by Kurt
      Garloff)
    - added support for Mylex DAC960 PCI RAID controllers (by Leonard Zubkoff)
    - added support for third to sixth IDE interface
    - build-time option READONLY was not used properly
    - fixed a few harmless compiler warnings

  Documentation and installation
  ------------------------------

    - user's guide claimed that partitions are hidden by setting the highest
      bit in the type (i.e. 0x80). The correct value is 0x10, which is also
      what is used in the code.
    - removed useless (and potentially harmful) DEFAULT_PATH from
      keytab-lilo.pl (fixed by Andries Brouwer)
    - consistency of build-time options is now checked before build starts
    - QuickInst has now limited knowledge of multi-disk configurations
    - doc/Makefile: added targets user.ps and tech.ps
    - user's guide still claimed that kernels can't be larger than 512 kB
      (reported by Jean-Albert Ferrez)
    - weird description of the purpose of option BEEP (reported by Tom Toffoli)


Changes from version 19 to 20 (20-JUN-1997)
-----------------------------

  Boot loader
  -----------

    - now supports 19200 bps and 38400 bps on the serial line (UNTESTED)
    - when reaching the end of the command line buffer, input is ignored
      instead of being treated like [Enter] (by Martin Mares)
    - fixed numerous bugs in patching of heap end pointer in setup.S (by Martin
      Mares)
    - images can now optionally be launched with a single keystroke (no [Enter]
      required)
    - now supports non-US keyboard layouts

  Map installer
  -------------

    - DISK sections may now also define non-disk devices, e.g. /dev/ram
    - increased debug level for the "Caching device ..." message
    - changed the chain loader format to allow sizes > 512 Bytes
    - chain loader now supports arbitrary drive mappings (option MAP-DRIVE)
    - chain loader now supports arbitrary partition table modifications (option
      CHANGE)
    - removed the configuration option REWRITE-TABLE
    - removed the build-time options FIX_TABLE and HIDE_DOS
    - added the global configuration option CHANGE-RULES plus sub-options
      RESET, TYPE, NORMAL, and HIDDEN
    - OTHER sections have new configuration option CHANGE plus sub-options
      PARTITION, SET, ACTIVATE, and DEACTIVATE
    - OTHER sections have new configuration option MAP-DRIVE with sub-option TO
    - now only 0x1b8 bytes of the boot sector are overwritten, which preserves
      some magic numbers NT stores there
    - compiles with 2.1 kernels (asm/boot.h problem - reported by many people)
    - should also compile under 0.93 or such again (required NORMAL_VGA etc.,
      which didn't exist back then)
    - lilo -q  now prints unknown VGA modes also in hex (by Martin Mares)
    - option SINGLE-KEY to allow single-key activation
    - -Wno-parentheses  is no longer needed
    - didn't complain if image label was equal to alias
    - removed some ancient dead code
    - new option KEYTABLE to specify non-standard keyboard mappings
    - PS/2 ESDI disk (/dev/eda and /dev/edb) support (by Andrew Kroll)
    - geometry.c:last_dev now only probes for the first two IDE disks
    - because chain.b is used for everything anyway, specifying the chain
      loader when booting from a driver other than the first one is no longer
      mandatory

  Documentation and installation
  ------------------------------

    - changed all references to nic.funet.fi to ftp.funet.fi
    - updated the user's guide and did some restructuring (many changes)
    - QuickInst no longer puts ramdisk=0 into lilo.conf
    - QuickInst now consistently checks for LILO >= version 15
    - make clean  and  make spotless  now also remove dump.s and dump.b (by
      Martin Mares)
    - changed package names from lilo[.part].<version> to
      lilo[-part]-<version> for compatibility with sunsite's archive
      maintenance scripts
    - new tool keytab-lilo.pl to generate LILO keyboard tables
    - updated t2a.pl to a version compatible with Perl 5
    - READONLY implicitly turns off REWRITE_TABLE


Changes from version 18 to 19 (21-MAY-1996)
-----------------------------

  Boot loader
  -----------

    - new compile-time option to beep after displaying "LILO"

  Map installer
  -------------

    - common.h broke compilation if CONFIG_BSD_DISKLABEL is enabled
    - no longer tries to interpret dollar signs and such in comments
    - check for too many images didn't work (patch by Andries Brouwer)

  Documentation and installation
  ------------------------------

    - removed some "dead" targets in Makefile
    - stopped using -N, because recent binutils link statically then
    - INCOMPAT no longer promises that REWRITE_TABLE will be fixed in
      version 19


Changes from version 17 to 18 (16-MAY-1996)
-----------------------------

  Boot loader
  -----------

    - added ability to load data (e.g. kernels) at addresses >= 0x100000
    - added support for loading an initial RAM disk
    - any_*.b became too big when using REWRITE_TABLE
    - included trimmed sector read function for first.S by Ted Ts'o
    - now prints spaces before error codes
    - temporarily removed support for REWRITE_TABLE
    - added support for heap size indication to kernel setup.S
    - added compile-time option XL_SECS for extra large disks

  Map installer
  -------------

    - new option INITRD to load an initial RAM disk
    - added support for "big" kernels (> 0.5 MB compressed), which are loaded
      directly at 0x100000
    - long quoted strings can now be distributed over several lines using
      a backslash
    - environment variables are accessible in lilo.conf with $name or ${name}
    - now properly identifies attempts to map from NFS and such
    - refuses to overwrite unsuitable partitions
    - caches device names and numbers, thereby significantly reducing the
      number of readdir and stat system calls (typically, the total number of
      system call decreases by about 80%)
    - temporarily removed support for REWRITE_TABLE
    - geometry.c:exists now opens devices read-write in order to avoid
      reading from CD-ROM devices (patch by Alain Knaff)
    - added a warning if COMPACT is used with LINEAR

  Documentation and installation
  ------------------------------

    - documentation, QuickInst, and on-line usage information no longer mention
      the disktab file (a DISK section should be used instead)
    - mkdist now uses the VERSION file
    - distribution now includes .lsm file
    - LILO is now compiled without -O2
    - updated FTP references and rewrote them to conform to RFC1738


Changes from version 16 to 17 (19-DEC-1995)
-----------------------------

  Boot loader
  -----------

    - changes for FALLBACK and new map section structure (see below)
    - LCF_READONLY now disables the LOCK option (and FALLBACK too)
    - added command-line option  kbd  to preload keyboard buffer
    - write errors are now reported (Wxx)
    - chain loaders now support changing the active partition (enabled with
      REWRITE-TABLE)
    - chain loader can also "un-hide" a DOS partition if its partition type
      has been changed by OS/2 BM (build-time option FIX_TYPE)
    - when enabling HIDE_DOS in addition to FIX_TYPE, DOS partitions (except
      for the one being booted) are hidden, just like OS/2 BM does (build-time
      option HIDE_DOS)

  Map installer
  -------------

    - added FALLBACK option to change default command line before booting
      the current image
    - added REWRITE-TABLE option to patch partition table at boot time
    - added REWRITE_TABLE build-time option to enable REWRITE-TABLE
    - added DISK section flag INACCESSIBLE to mark disk as inaccessible for
      the BIOS so that the map installer can refuse bad mappings
    - options and fallback sectors are now at the beginning of map sections
    - -q and -R were accidentially marked as optional in usage
    - fixed incorrect partition check for  other = <non-root>

  Documentation and installation
  ------------------------------

    - changed LILO version numbers to always be of the form <number> instead
      of 0.<number>
    - README now also contains the version number
    - make install  now strips /sbin/lilo instead of trying to strip /sbin
    - various bug fixes in QuickInst
    - added file VERSION containing the current version number and new
      make target  version  to rename ../lilo to ../lilo-<version>
    - changed a footnote which yielded an asterisk at the end of a command
      line in the ASCII README
    - -q and -R were accidentally marked as optional in command-line
      descriptions
    - mentioned -D option in command line description
    - new section "System overview" in the user's manual and several minor
      additions
    - a few minor corrections and addition of unusual error messages
    - the last traces of "old-style" configuration have been removed


Changes from version 15 to 16 (26-FEB-1995)
-----------------------------

  Boot loader
  -----------

    - added register dump boot sector (dump.S) for debugging
    - chain loaders now clear BP. This might help in some cases where DOS
      refused to boot.

  Map installer
  -------------

    - really fixed -R this time
    - now suggests to "use a DISK section" (instead of disktab) if HDIO_REQ
      fails
    - removed incorrect error message when using a disktab
    - added check to detect CD-ROMs with major numbers of hard disks
    - no longer complains about corrupt partition table if 3D address is
      smaller than linear address and (3D) cylinder is 1023  (OS/2 does
      is this way)
    - LOADER is now required when booting an operating system from any device
      than the first hard or floppy disk
    - changed header protection macros from _xxx_H_ to xxx_H
    - added (untested) support for 2nd IDE controller (major 22)

  Documentation and installation
  ------------------------------

    - user.tex is now compatible with LaTeX 2e (\textfont0 problem)
    - tech.tex now avoids \SetFigFont (LaTeX 2e again)
    - /sbin/lilo is now optimized and stripped when installing
    - ASCIIfied "Booting basics" section
    - removed all references to the old directory structure
    - added description of LOCK in config file
    - updated FD TMC-1680 warning
    - added reminder to re-run /sbin/lilo when modifying partition tables
    - updated list of kernel options
    - added detailed description of >2 disks and >1024 cylinders
    - added description of putting /boot on a DOS partition
    - reordered sections in "Installation and updates"
    - updated tech.tex


Changes from version 14 to 15 (23-OCT-1994)
-----------------------------

  General
  -------

    - upon popular demand, a copyright notice has been added

  Boot loader
  -----------

    - now also drains the keyboard type-ahead buffer
    - new command-line option "lock" to make the specified command line the
      default for the following boots too
    - default command line execution can now be interrupted in prompt mode too

  Map installer
  -------------

    - fixed -R arguments handling bug
    - fixed -P argument handling bug
    - fixed yet another recursion problem with /dev/fd -> /proc/self/fd
    - added option -D and configuration variable DEFAULT to specify the
      default image without changing the oder of entries in /etc/lilo.conf
    - added configuration variable LOCK to make the specified command line the
      default for the following boots too
    - added disk geometry configuration in the general configuration file.
      /etc/disktab is now considered obsolete.
    - added option -w and configuration variable NOWARN to disable some
      warnings
    - added warning when putting the boot sector on a non-boot disk
    - added warning for possibly inaccessible devices (e.g. third disk)
    - added warning for disks/partitions with more than 1024 cylinders
    - added warnings for bad permissions of the configuration file
    - fixed handling of floppies in geo_open_boot
    - removed erroneous call to part_verify when booting other systems
      from files
    - added support for variable-size setup segments as supported by kernels
      >= 1.1.43
    - restructured verbosity levels
    - allowed escaping of backslashes in quoted strings (/etc/lilo.conf)
    - /sbin/lilo -q -v  now displays all settings

  Documentation and installation
  ------------------------------

    - lots of things have been restructured
    - many changes to describe the current Linux environment
    - "new" directory structure is now the default
    - README is now generated from user.tex by a Perl script
    - lots of minor corrections and clarifications
    - added a copyright notice and adapted several comments
    - QuickInst: updated default kernel names
    - QuickInst: now runs  /sbin/lilo -t  before trying to install
    - doc/Makefile: removed extra "Label(s) may have changed" output
    - disktab: changed header comment and added second example line
    - /etc/disktab is no longer automatically created by  make install
    - linking /etc/lilo/install -> /sbin/lilo is no longer suggested
    - removed mkbindist. I don't think anybody used it anyway.


Changes from version 13 to 14
-----------------------------

  Map installer
  -------------

    - added a few missing closedirs to device.c:scan_dir
    - added detection of directory loops to device.c:scan_dir and
      geometry.c:last_dev
    - fixed handling of dangling links in /dev
    - new option -u [ device ] to restore boot sector. Unsafe mode with -U
    - fixed/improved usage message

  Documentation and installation
  ------------------------------

    - QuickInst: did not write "other" sections to configuration file
    - QuickInst.new: improved handling of disks without active partitions
    - QuickInst.new now knows about /etc/disktab (relict from Shoelace,
      still in some distributions)
    - QuickInst.new now uses *_d.b chain loaders when configuring non-Linux
      systems on the second disk


Changes from version 12 to 13
-----------------------------

  General
  -------

    - BSS is no longer cleared by LILO, because the kernel itself does
      that now.
    - added support for the new directory structure. Makefile and QuickInst
      come in .old and .new versions. See INCOMPAT for details.
    - removed support for unstripped kernels. Therefore, mkck is no longer
      part of the distribution.

  Boot loader
  -----------

    - added missing  seg es  override to UI_MAGIC check at "input".

  Map installer
  -------------

    - new options LITERAL and APPEND.
    - the root setting is no longer being shown on -q -v
    - the configuration file may now contain quoted strings in which spaces
      and equal signs do not have to be escaped.

  Documentation and installation
  ------------------------------

    - fixed bug in QuickInst that prevented correct renaming of the config
      file when ROOT is set.
    - added comment to disktab indicating that it is typically not needed.
    - distributed files are now readable for group and other.
    - mkdist is now included in the distribution.
    - changed the name of kernels from "(traditional) boot image" to
      "kernel image".
    - changed the name of the string passed to the kernel from "command
      line" to "parameter line".
    - removed obsolescent terms "rootimage" and "bootimage".
    - fixed documentation bug claiming only kernels can be protected by
      passwords.
    - fixed some additional minor documentation errors.


Changes from version 11 to 12
-----------------------------

  Boot loader
  ----------

    - removed accidential swapping of A:/B: when swapping C:/D: from
      the chain loader.
    - added new chain loader any_b.b (swaps A:/B:)
    - fixed incorrect handling of drive number resetting in swapping
      versions of the chain loader.
    - now generates diagnostics when failing to load the second stage
      loader.
    - new compile-time option NO1STDIAG to disable these diagnostics.

  Map installer
  -------------

    - fixed stat/fstat when creating temporary devices.
    - subdirectories of /dev are now recursively searched for disk devices
      in addition to /dev
    - devices are now counted by highest device number, not by name.
    - some minor fixes.

  Documentation and installation
  ------------------------------

    - QuickInst now warns if there is an obsolete LILO boot sector on
      the MBR.
    - QuickInst is now prepared to handle symbolic links hda -> sda
    - other minor fixes to QuickInst.
    - removed all references to compound unstripped kernels from the
      user's guide.
    - activate is now compiled as a stripped, statically linked, impure
      executable.
    - fixed a few minor omissions in the technical overview.


Changes from version 10 to 11
-----------------------------

  Boot loader
  -----------

    - added on the fly patching of the BIOS disk parameter table to
      fix the "Error 0x04" observed on some systems.

  Map installer
  -------------

    - floppy devices are no longer opened at all when using the UNSAFE
      option in OTHER.
    - fixed partition table checking.
    - new option -V to display the version number.
    - INSTALL = /etc/lilo/boot.b  is now the default if INSTALL is
      omitted.
    - new compile-time configuration option NOINSTDEF to restore the old
      semantics of INSTALL.

  Documentation and installation
  ------------------------------

    - QuickInst no longer asks whether to change the active partition if
      installing LILO as the MBR.
    - QuickInst now suggests configuring other operating systems if
      installing LILO as the MBR.
    - added a version check to QuickInst.
    - added de-installation instructions.
    - fixed a few minor documentation bugs.
    - added script mkbindist that generates a minimal binary distribution
      of LILO.


Changes from version 9 to 10
----------------------------

  Boot loader
  -----------

    - added support for read-only setting of root.
    - new chain loader os2.b to load OS/2 from the second disk.
    - new chain loader any_d.b to load BIOS-based operating systems
      (e.g. PC/MS-DOS) from the second disk.

  Map installer
  -------------

    - removed support for old-style configuration.
    - removed the dump option -D
    - removed support for not-compound unstripped kernels.
    - limited partition checking to hard disks and primary partitions.
    - -C now accepts - for standard input.
    - -P now has sub-options "fix" and "ignore". New configuration
      variable "ignore-table" coresponds to "-P ignore"
    - added automatic backup of the partition table when fixing it.
    - new configuration variables "readonly" and "read-write" to change
      read-only mounting of root.
    - made partition offset field in /etc/lilo/disktab optional.
    - added tentative support for XT-type hard disks.
    - improved some error messages.
    - some minor fixes.

  Documentation and installation
  ------------------------------

    - changed many "echo"s in QuickInst to "cat"s.
    - suggesting using a symbolic link to lilo for /etc/lilo/install.
    - removed the configuration option NOAUTO.
    - split the documentation in a user's guide and the technical
      overview.
    - removed all references to older versions of LILO, the kernel or
      other programs.
    - removed all references to old-style configuration and not-compound
      unstripped kernels.
    - using the fullpage style.
    - removed and "ascified" anew the shared sections of README and the
      LaTeX documentation.
    - some minor corrections.


Changes from version 8 to 9
---------------------------

  Boot sector
  -----------

    - can now get the command line from the map file and overwrite
      that sector.
    - passes the word "auto" on the command line if booting after a
      timeout.
    - new command-line option vga={ask,normal,ext,extended,<number>}
      to alter the VGA mode on the fly.
    - image name matching can now be made case-insensitive (default)
    - added sanity checks for the second stage loader and the
      descriptor tables.

  Map installer
  -------------

    - added new compound unstripped kernel format.
    - -r is now implied if the environment variable ROOT is set.
    - new option -I to translate a label name (e.g. obtained from
      BOOT_IMAGE) to the path of the kernel image.
    - new variable MESSAGE to define a startup message.
    - new variable UNSAFE to bypass sanity checks and floppy spin-up
      when defining other operating systems.
    - new variable ALIAS to define a second label name.
    - new variable RESTRICTED to confine password protection to
      invocations with parameters.
    - added a missing #include <sys/stat.h> to map.c
    - fixed the BIOS_MAX_* parameters in lilo.h
    - removed too restrictive cylinder number check.
    - new option -R to set/clear the default command line in the
      map file.
    - added verification of 3D and linear address equality of
      partition starts (in the partition table).
    - suppressed outputting the version string when using -D with -v
    - "vga=extended" can now be abbreviated to "vga=ext".

  Documentation and installation
  ------------------------------

    - added a test for broken regexp in sed, grep and egrep to
      QuickInst. Other minor improvements.
    - now uses build-time configuration variables in Makefile or
      /etc/lilo/config.defines
    - copied section "LILO start messages" from doc.tex to README
    - removed the description of a floppy test installation from
      README. (doc.tex never contained that part.)
    - fixed some minor documentation errors and omissions.
    - fixed some minor Makefile bugs.
    - included the LaTeX translations of the FIG files.
    - moved the "Technical overview" to the end.


Changes from version 7 to 8
---------------------------

  Boot sector
  -----------

    - now supports password protection for boot images.
    - fixed occasional omission of delays.
    - passes the name of the boot image to the kernel, which stores
      it in the environment variable BOOT_IMAGE.
    - parameters are now preserved when trying to boot the same
      image again after a media error.
    - the command line is preserved on error.
    - can be operated from a serial line.
    - made timeout handling interrupt-driven to fix time-wrap problems
      at midnight.
    - now clears all bytes after text and data of traditional boot
      images booted from a file.

  Map installer
  -------------

    - added detection of missing HDIO_REQ support.
    - added sanity checking for disk parameters.
    - fixed BIOS code computation for SCSI disks.
    - command-line settings can now override /etc/lilo/config
    - defaults for ROOT, VGA, RAMDISK, PASSWORD and OPTIONAL can be set
      in the options section.
    - new option PROMPT to unconditionally enter the boot prompt.
    - new option TIMEOUT to specify an input timeout.
    - new flag OPTIONAL to specify that an image can be omitted if it
      isn't present.
    - new value CURRENT for ROOT to specify the "current" root device.
    - special characters are now correctly escaped in dumps.
    - temporary files are now removed on error.
    - updated the usage output to reflect the changes since 0.6.
    - added a missing closedir to device.c

  Documentation and installation
  ------------------------------

    - wrote a quick installation script.
    - fixed many small documentation errors.
    - wrote a README for the doc directory.
    - added descriptions of the configuration parameters passed in
      the boot sector and of the kernel's command-line interface.
    - Makefile now explicitly uses /bin/sh
    - changed echo \c to echo -n in the Makefile
    - added ability to print the name of the active partition to
      activate.


Changes from version 6 to 7
---------------------------

  Boot sector
  -----------

    - supports video mode and RAM disk size settings.
    - loads original boot sector to make possible additional settings
      available.
    - now uses defaults from the boot sector even if the boot sector
      has been changed after map creation.

  Map installer
  -------------

    - new configuration based on /etc/lilo/config
    - can get SCSI geometry without using /etc/lilo/disktab (doesn't
      work with 0.98pl6)
    - removed support for BIOS codes (name:code)
    - removed support for setting the swap device.
    - new command-line options: -q, -C and -D

  Documentation
  -------------

    - updated to cover new-style configuration
    - extended the plain-ASCII README


Changes from version 5 to 6
---------------------------

  Boot sector
  -----------

    - added command-line argument passing.
    - now clears BSS of traditional images too.
    - chain.b is now more careful about register values when invoking
      the boot sector of the other OS.
    - added an interface for externally provided command lines.
    - added experimental recognition of linear addresses.

  Map installer
  -------------

    - fixed opening the disktab file. (Using -f didn't work.)
    - fixed use of BIOS codes for the map file: the tilde is now appended
      before the BIOS code.
    - added a chdir("/") when using -r
    - added more sanity checks.
    - added generation of linear addresses.

  Documentation
  -------------

    - removed all references to swap device settings in the kernel because
      recent kernels don't support that any longer.
    - added a troubleshooting section.
    - several minor fixes and improvements.


Changes from version 4 to 5
---------------------------

  Map installer
  -------------

    - added automatic boot sector backup.
    - fixed variable block size detection. (Didn't work with the 0.97-pl2
      kernel.)
    - added the chroot (-r) option.
    - made the partition table part of a foreign OS boot descriptor
      optional.

  Documentation and installation
  ------------------------------

    - most of README has moved into doc.tex (LaTeX)
    - added a utility to activate a partition.
    - make install  now reminds the user to update the map.
    - dd is now used in a more efficient way in the Makefile.
      (Fewer subshells, etc.)


Changes from version 3 to 4
---------------------------

  Boot sector
  -----------

    - added a configurable delay.
    - added a diagnostic title message.

  Map installer
  -------------

    - fixed all known include file conflicts.
    - added support for variable block sizes. (Not used yet.)
    - added some more sanity checks.
    - added a tool to determine SCSI disk parameters.

  Documentation and installation
  ------------------------------

    - extended coverage of SCSI disks.
    - make install  now backs up chain.b and boot.b of any older LILO
      installation. (To say: your system remains bootable even if you
      forget to run /etc/lilo/install after the update or if this fails
      for some reason.)
    - moved the changes section from README into CHANGES.
    - a set of pre-compiled executables of lilo, boot.b, chain.b and
      dparam.com is available too.


Changes from version 2 to 3
---------------------------

  Boot sector
  -----------

    - can initialize BSS of unstripped kernels.
    - also accepts [Tab] to show the list of known images.

  Map installer
  -------------

    - fixed parsing of the root device specification.
    - fixed setting of the root device when the boot image doesn't
      define it.
    - reduced the number of installable images from 19 to 16. (Because the
      descriptors have grown.)

  Documentation
  -------------

    - added a booting basics section.
    - many minor changes.


Changes from version 1 to 2
---------------------------

  Boot sector
  -----------

    - added command-line editing.
    - added debugging support (-DDEBUG).
    - added support for compacted maps.
    - some cosmetic changes.

  Map installer
  -------------

    - major rewrite.
    - files that contain "holes" are now handled properly.
    - added map compaction.
    - devices are now created on the fly only if they can't be found in /dev.
    - improved sanity checking.
    - can now boot other operating systems.
    - can now boot unstripped kernel executables.
    - added support for a disk parameter file.
    - reduced the number of installable images from 21 to 19.
    - changed the command-line syntax.
    - root and boot can now be specified on the command line.

  Documentation
  -------------

    - many changes, including correction of some minor errors.


Changes from version 0 to 1
---------------------------

  Boot sector
  -----------

    - tested as master boot record.
    - improved the boot prompt invocation method.
    - increased the number of installable images to 21.
    - added a help facility.
    - improved read error handling and error reporting in the boot loader.
    - added a second stage boot loader.

  Map installer
  -------------

    - fixed some minor bugs in the map installer. Removed all compiler
      warnings.
    - added labeling of images.
    - added version checking for the boot sector.
    - replaced option -r by -m. -r will be available for a while for
      compatibility.
    - added booting from device files (that have boot images written on them).
    - BIOS device codes can now be specified for boot image files too.
    - added concatenation of images. (This is a test feature that will be
      changed in the future.)

  Documentation
  -------------

    - some minor documentation errors have been corrected.
    - the README now warns that the map has to be rebuilt after the images are
      replaced or moved.
    - added a files, a hints and an examples section.
