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Dual Booting
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ELILO(8) System Manager's Manual ELILO(8) NAME
elilo - install EFI boot loader SYNOPSIS
elilo [options] DESCRIPTION
This manual page documents briefly the elilo command, which was written specifically for the Debian distribution to simplify configuring and using the elilo.efi bootloader. There are two parts to elilo, the bootloader itself and this utility which installs or updates a bootload configuration. The primary function of elilo is to copy files necessary for booting Debian GNU/Linux from the main filesystem to a subdirectory /EFI/debian on the boot partition. These include elilo.efi, elilo.conf, and the kernel and ramdisk images referenced by elilo.conf. In addition, elilo can create a default configuration file, /etc/elilo.conf, and can invoke efibootmgr to create an entry in the EFI Boot Manager menu such that a system will autoboot in to Debian GNU/Linux on power up. elilo requires a couple of extra parameters in elilo.conf that elio.efi does not currently support. These are needed so that a normal run of elilo with no parameters can find the elilo.efi binary and boot partition in order to rebuild it. They are: install=<path to elilo.efi> boot=<boot partition> OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). -b, --boot set bootstrap partition device [ -b /dev/sda1 ] -i, --install pathname to the actual bootloader binary, default: /usr/{local/}lib/elilo/elilo.efi -C, --config use alternate configuration file [ -C config_file ] --autoconf auto-generate a /etc/elilo.conf. Typically only used during system installation. In normal use, an elilo.conf file already exists and will not be modified by elilo. --efiboot elilo auto configuration: create an efi boot manager entry for elilo. This option requires that the efibootmgr package also be installed. --timeout elilo auto configuration: sets the time elilo will wait for user input before booting default image default: 20 (2 seconds) --image elilo auto configuration: sets the path to the kernel image. default: /vmlinuz --label elilo auto configuration: sets the image label default: Linux --root elilo auto configuration: sets the root device default: /dev/sda3 --format create a new FAT filesystem on the boot partition. Use this cautiously if you have more than one operating system installed, and they may be sharing the same EFI partition! -v, --verbose make elilo more verbose --debug print boring junk only useful for debugging -h, --help display this help and exit -V, --version output version information and exit FILES
/etc/elilo.conf /usr/lib/elilo/elilo.efi SEE ALSO
efibootmgr(8) Additional information about elilo is available in the /usr/share/doc/elilo directory. AUTHOR
The elilo program and this manual page were written by Richard Hirst <rhirst@linuxcare.com> and Bdale Garbee <bdale@gag.com> as additions to the elilo bootloader package from Stephane Eranian <eranian@hpl.hp.com> for the Debian GNU/Linux system (but may be used by others). 18 Mar 2002 ELILO(8)
