LILO (boot loader)

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LILO

Standard LILO display. Windows as the default operating system, with 18 more seconds to make a different decision.
Developer John Coffman
Latest release 22.8 / February 19, 2007
Genre Bootloader
License BSD license
Website http://lilo.go.dyndns.org/
LILO redirects here, for uses other than the boot loader, see Lilo

LILO (LInux LOader) is a generic boot loader for Linux.

LILO was originally developed by Werner Almesberger, while its current developer is John Coffman.

LILO does not depend on a specific file system, and can boot an operating system (e.g., Linux kernel images) from floppy disks and hard disks. One of up to sixteen different images can be selected at boot time. Various parameters, such as the root device, can be set independently for each kernel. LILO can be placed either in the master boot record (MBR) or the boot sector of a partition. In the latter case something else must be placed in the MBR to load LILO.

At system start, only the BIOS drivers are available for LILO to access hard disks. For this reason, with very old BIOSes, the accessible area is limited to cylinders 0 to 1023 of the first two hard disks. For later BIOSes, LILO can use 32-bit "logical block addressing" (LBA) to access practically the entire storage of all the harddisks that the BIOS allows access to.

LILO was the default bootloader for most Linux distributions in the years after the popularity of loadlin. Today, most distributions use GRUB as the default bootloader.

The lilo.conf file is typically located at /etc/lilo.conf. Within lilo.conf there are typically two section types. The first section, which defines the global options, contains parameters which specify boot location attributes. The second section(s) contain parameters associated with the operating system images to be loaded. The section type can be repeated for up to 16 different boot selections.

Definition information can be found in the LILO main page.

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