LILO

Section: Maintenance Commands (8)
Updated: 20 March 2000
 

NAME

lilo - install boot loader  

SYNOPSIS

Main function:

/sbin/lilo - install boot loader

Auxiliary uses:

/sbin/lilo -q - query map
/sbin/lilo -R - set default command line for next reboot
/sbin/lilo -I - inquire path name of current kernel
/sbin/lilo {-u|-U} - uninstall lilo  

DESCRIPTION

lilo installs a boot loader that will be activated next time you boot. It has lots of options.

-v
Increase verbosity. Giving one or more -v options will make lilo more verbose.
-q
List the currently mapped files. lilo maintains a file, by default /boot/map, containing the name and location of the kernel(s) to boot. This option will list the names therein.
-m map-file
Use specified map file instead of the default.
-C config-file
lilo reads its instructions about what files to map from its config file, by default /etc/lilo.conf. This option can be used to specify a non-default config file.
-d delay
If you have specified several kernels, and press Shift at boot-time, the boot loader will present you with a choice of which system to boot. After a timeout period the first kernel in the list is booted. This option specifies the timeout delay in deciseconds.
-D label
Use the kernel with the given label, instead of the first one in the list, as the default kernel to boot.
-r root-directory
Before doing anything else, do a chroot to the indicated directory. Used for repairing a setup from a boot floppy.
-t
Test only. Do not really write a new boot sector or map file. Use together with -v to find out what lilo is about to do.
-c
Enable map compaction. This will merge read requests from adjacent sectors. Speeds up the booting (especially from floppy).
-f disk-tab
Specify disk geometry parameter file. (The default is /etc/disktab.)
-i boot-sector
Specify a file to be used as the new boot sector. (The default is /boot/boot.b.)
-l
Generate linear sector addresses instead of sector/head/cylinder addresses.
-L
Generate 32-bit Logical Block Addresses instead of C:H:S addresses, allowing access to all partitions on disks greater than 8.4Gb.
-P {fix|ignore}
Fix (or ignore) `corrupt' partition tables, i.e., partition tables with linear and sector/head/cylinder addresses that do not correspond.
-s save-file
When lilo overwrites the boot sector, it preserves the old contents in a file, by default /boot/boot.NNNN where NNNN depends on the device. This option specifies an alternate save file for the boot sector. (Or, together with the -u option, specifies from where to restore the boot sector.)
-S save-file
Normally, lilo will not overwrite an existing save file. This options says that overwriting is allowed.
-u device-name
Uninstall lilo, by copying the saved boot sector back. A time-stamp is checked.
-U device-name
Idem, but do not check the time-stamp.
-R command line
This option sets the default command for the boot loader the next time it executes. The boot loader will then erase this line: this is a once-only command. It is typically used in reboot scripts, just before calling `shutdown -r'.
-I label
The label of the running kernel can be found in the environment variable BOOT_IMAGE after startup. This command will print the corresponding path name on stdout.
-V
Print version number.

The above command line options correspond to the key words in the config file indicated below.

-b bootdevboot=bootdev
-ccompact
-d dsecdelay=dsec
-D labeldefault=label
-i bootsectorinstall=bootsector
-f filedisktab=file
-llinear
-Llba32
-m mapfilemap=mapfile
-P fixfix-table
-P ignoreignore-table
-s filebackup=file
-S fileforce-backup=file
-vverbose=level
 

SEE ALSO

lilo.conf(5).
The lilo distribution comes with very extensive documentation.  

AUTHOR

Werner Almesberger (almesber@bernina.ethz.ch).
John Coffman (johninsd@san.rr.com) (lba32 extensions).


 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
AUTHOR
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