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linux 的引导程序源码The Microsoft&reg Windows&reg Software Development Kit (SDK) provides the documentation

   -b <boot_device>    
     Specifies the boot device. See also sections "Options corresponding to 
    configuration variables" and "Global options". 
   -c    
     Enables map compaction. See also sections "Options corresponding to 
    configuration variables" and "Global options". 
   -C <config_file>    
     Specifies an alternate configuration file. See also section "Show 
    current installation". 
   -d <delay>    
     Sets the delay before LILO boots the default image. Note that the 
    delay is specified in _tenths_ of a second. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -D <name>    
     Specifies the default image. See also sections "Options corresponding 
    to configuration variables" and "Global options". 
   -f <disk_tab>    
     Specifies a disk parameter table file. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -i <boot_sector>    
     Specifies an alternate boot file. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -L    
     Enables lba32 sector addresses. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -l    
     Enables linear sector addresses. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -m <map_file>    
     Specifies an alternate map file. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -P <mode>    
     Specifies how invalid partition table entries should be handled. See 
    also sections "Options corresponding to configuration variables" and 
    "Global options". 
   -r <root_directory>    
     Chroots to the specified directory before doing anything else. This is 
    useful when running the map installer while the normal root file system 
    is mounted somewhere else, e.g. when recovering from an installation 
    failure with a recovery disk. The  -r  option is implied if the 
    environment variable  ROOT  is set.* The current directory is changed 
    to the new root directory, so using relative paths may not work. 
   -s <save_file>    
     Specifies an alternate boot sector save file. See also sections 
    "Options corresponding to configuration variables" and "Global 
    options". 
   -S <save_file>    
     Like  -s , but overwrites old save files. 
   -t    
     Test only. This performs the entire installation procedure except 
    replacing the map file, writing the modified boot sector and fixing 
    partition tables. This can be used in conjunction with the  -v  option 
    to verify that LILO will use sane values. 
   -v ...    
     Increase verbosity. See also sections "Options corresponding to 
    configuration variables" and "Global options". 

  *  E.g. if your root partition is mounted on /mnt, you can update the map 
    by simply running  ROOT=/mnt /mnt/sbin/lilo 


Change default command line
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Changes LILO's default command line. See also section "Boot image 
selection".

  /sbin/lilo [ -C <config_file> ] [ -m <map_file> ] -R [ <word> ... ]  

   -C <config_file>    
     Specifies an alternate configuration file. See also section "Show 
    current installation". 
   -m <map_file>    
     Specifies an alternate map file. See also sections "Options 
    corresponding to configuration variables" and "Global options". 
   -R <word ...>    
     Stores the specified words in the map file. The boot loader uses those 
    words as the default command line when booting the next time. That 
    command line is removed from the map file by the boot loader by 
    overwriting the sector immediately after reading it. The first word has 
    to be the name of a boot image. If  -R  is not followed by any words, 
    the current default command line in the map file is erased.* If the 
    command line isn't valid, the map installer issues an error message and 
    returns a non-zero exit code. 

  *   -R  is typically used in reboot scripts, e.g.
     #!/bin/sh
     cd /
     /sbin/lilo -R "$*" && reboot


Kernel name translation
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Determines the path of the kernel.

  /sbin/lilo [ -C <config_file> ] -I <name> [ <options> ]  

   -C <config_file>    
     Specifies an alternate configuration file. See also section "Show 
    current installation". 
   -I <name> [ <options> ]    
     Translates the specified label name to the path of the corresponding 
    kernel image and prints that path on standard output. This can be used 
    to synchronize files that depend on the kernel (e.g. the ps database). 
    The image name can be obtained from the environment variable  
    BOOT_IMAGE . An error message is issued and a non-zero exit code is 
    returned if no matching label name can be found. The existence of the 
    image file is verified if the option character  v  is added. 


De-installation
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Restores the boot sector that was used before the installation of LILO. 
Note that this option only works properly if LILO's directories (e.g. 
/boot) have not been touched since the first installation. See also section 
"LILO de-installation".

  /sbin/lilo [ -C <config_file> ] [ -s <save_file> ] -u | -U [ 
    <boot_device> ]  

   -C <config_file>    
     Specifies an alternate configuration file. See also section "Show 
    current installation". 
   -s <save_file>    
     Specifies an alternate boot sector save file. See also sections 
    "Options corresponding to configuration variables" and "Global 
    options". 
   -u [ <device_name> ]    
     Restores the backup copy of the specified boot sector. If no device is 
    specified, the value of the boot variable is used. If this one is also 
    unavailable, LILO uses the current root device. The name of the backup 
    copy is derived from the device name. The -s option or the backup 
    variable can be used to override this. LILO validates the backup copy 
    by checking a time stamp. 
   -U [ <device_name> ]    
     Like -u, but does not check the time stamp. 


Print version number
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  /sbin/lilo -V  

   -V    
     Print the version number and exit. 


Options corresponding to configuration variables
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There are also many command-line options that correspond to configuration 
variables. See section "Global options" for a description.

Command-line option | Configuration variable    
------------------------------------------------
-b <boot_device>    | boot=<boot_device>        
-c                  | compact                   
-d <tsecs>          | delay=<tsecs>             
-D <name>           | default=<name>            
-i <boot_sector>    | install=<boot_sector>     
-L                  | lba32                     
-l                  | linear                    
-m <map_file>       | map=<map_file>            
-P fix              | fix-table                 
-P ignore           | ignore-table              
-s <backup_file>    | backup=<backup_file>      
-S <backup_file>    | force-backup=<backup_file>
-v ...              | verbose=<level>           


Configuration
-------------

The configuration information is stored in the file /etc/lilo.conf and 
consists of variable assignments.


Syntax
- - -

The following syntax rules apply:

  - flag variables consist of a single word and are followed by whitespace 
    or the end of the file. 
  - string variables consist of the variable name, optional whitespace, an 
    equal sign, optional whitespace, the value and required whitespace, or 
    the end of the file. 
  - a non-empty sequence of blanks, tabs, newlines and comments counts as 
    whitespace. 
  - variable names are case-insensitive. Values are usually case-sensitive, 
    but there are a few exceptions. (See below.) 
  - tabs and newlines are special characters and may not be part of a 
    variable name or a value. The use of other control characters and 
    non-ASCII characters is discouraged. 
  - blanks and equal signs may only be part of a variable name or a value 
    if they are escaped by a backslash or if the value is embedded in 
    double quotes. An equal sign may not be the only character in a name or 
    value. 
  - an escaped tab is converted to an escaped blank. An escaped newline is 
    removed from the input stream. An escaped backslash (i.e. two 
    backslashes) is converted to a backslash. Inside quoted strings, only 
    double quotes, backslashes, dollar signs, and newlines can be escaped. 
  - quoted strings can be continued over several lines by ending each 
    incomplete line with a backslash. A single space is inserted in the 
    string for the line end and all spaces or tabs that follow immediately 
    on the next line. 
  - environment variables can be used by specifying them in the form 
    $<name> or ${<name>}. Dollar signs can be escaped. 
  - comments begin with a number sign and end with the next newline. All 
    characters (including backslashes) until the newline are ignored. 

Example:

boot = $FD
install = $MNT/boot.b
map = $MNT/map
compact
read-only
append = "nfsroot=/home/linux-install/root \
  nfsaddrs=128.178.156.28:128.178.156.24::255.255.255.0:lrcinst"
image = $MNT/zImage


Global options
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/etc/lilo.conf begins with a possibly empty global options section. Many 
global options can also be set from the command line, but storing permanent 
options in the configuration file is more convenient.

The following global options are recognized:

  BACKUP=<backup_file>  Copy the original boot sector to <backup_file> 
    (which may also be a device, e.g. /dev/null) instead of 
    /boot/boot.<number> 
  BOOT=<boot_device>  Sets the name of the device (e.g. a hard disk 
    partition) that contains the boot sector. If BOOT is omitted, the boot 
    sector is read from (and possibly written to) the device that is 
    currently mounted as root. 
  CHANGE-RULES  Defines partition type numbers. See section "Partition type 
    change rules" for details. 
  COMPACT  Tries to merge read requests for adjacent sectors into a single 
    read request. This drastically reduces load time and keeps the map 
    smaller. Using COMPACT is especially recommended when booting from a 
    floppy disk. COMPACT may conflict with LINEAR or LBA32, see section 
    "Other problems". 
  DEFAULT=<name>  Uses the specified image as the default boot image. If 
    DEFAULT is omitted, the image appearing first in the configuration file 
    is used. 
  DELAY=<tsecs>  Specifies the number of _tenths_ of a second LILO should 
    wait before booting the first image. This is useful on systems that 
    immediately boot from the hard disk after enabling the keyboard. LILO 
    doesn't wait if DELAY is omitted or if DELAY is set to zero. 
  DISK=<device_name>  Defines non-standard parameters for the specified 
    disk. See section "Disk geometry" for details. 
  FIX-TABLE  Allows LILO to adjust 3D addresses in partition tables. Each 
    partition entry contains a 3D (sector/head/cylinder) and a linear 
    32-bit address of the first and the last sector of the partition. If a 
    partition is not track-aligned and if certain other operating systems 
    (e.g. PC/MS-DOS or OS/2) are using the same disk, they may change the 
    3D address. LILO can store its boot sector only on partitions where 
    both address types correspond. LILO re-adjusts incorrect 3D start 
    addresses if FIX-TABLE is set.

     _WARNING:_ This does not guarantee that other operating systems may 
    not attempt to reset the address later. It is also possible that this 
    change has other, unexpected side-effects. The correct fix is to 
    re-partition the drive with a program that does align partitions to 
    tracks. Also, with some disks (e.g. some large EIDE disks with address 
    translation enabled), under some circumstances, it may even be 
    unavoidable to have conflicting partition table entries. 
  FORCE-BACKUP=<backup_file>  Like BACKUP, but overwrite an old backup copy 
    if it exists. BACKUP=<backup_file> is ignored if FORCE-BACKUP appears 
    in the same configuration file. 
  IGNORE-TABLE  Tells LILO to ignore corrupt partition tables and to put 
    the boot sector even on partitions that appear to be unsuitable for 
    that. 
  INSTALL=<boot_sector>  Install the specified file as the new boot sector. 
    If INSTALL is omitted, /boot/boot.b is used as the default. 
  KEYTABLE=<table_file>  Re-map the keyboard as specified in this file. See 
    section "Keyboard translation" for details. 
  LBA32  Generate 32-bit Logical Block Addresses instead of 
    sector/head/cylinder addresses. If the BIOS supports packet addressing, 
    then packet calls will be used to access the disk. This allows booting 
    from any partition on disks with more than 1024 cylinders. If the BIOS 
    does not support packet addressing, then LBA32 addresses are translated 
    to C:H:S, just as for LINEAR. All floppy disk references are retained 
    in C:H:S form. Use of LBA32 is recommended on all post-1998 systems. 
    LBA32 may conflict with COMPACT, see section "Other problems". 
  LINEAR  Generate linear sector addresses instead of sector/head/cylinder 
    addresses. Linear addresses are translated at run time and do not 
    depend on disk geometry. Note that boot disks may not be portable if 
    LINEAR is used, because the BIOS service to determine the disk geometry 
    does not work reliably for floppy disks. When using LINEAR with large 
    disks, /sbin/lilo may generate references to inaccessible disk areas 
    (see section "BIOS restrictions"), because 3D sector addr