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elilo(8) [debian man page]

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)

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UEFI(8) 						    BSD System Manager's Manual 						   UEFI(8)

NAME
UEFI -- Unified Extensible Firmware Interface bootstrapping procedures DESCRIPTION
The UEFI Unified Extensible Firmware Interface provides boot- and run-time services to operating systems. UEFI is a replacement for the legacy BIOS on the i386 and amd64 CPU architectures, and is also used on arm64 and ia64. The UEFI boot process loads system bootstrap code located in an EFI System Partition (ESP). The ESP is a GPT or MBR partition with a spe- cific identifier that contains an msdosfs(5) FAT file system with a specified file hierarchy. Partition Scheme ESP Identifier GPT C12A7328-F81F-11D2-BA4B-00A0C93EC93B MBR 0xEF The UEFI boot process proceeds as follows: 1. UEFI firmware runs at power up and searches for an OS loader in the EFI system partition. The path to the loader may be set by an EFI environment variable. If not set, the default is /EFI/BOOT/BOOTX64.EFI. The default UEFI boot configuration for FreeBSD installs boot1.efi as /EFI/BOOT/BOOTX64.EFI. 2. boot1.efi locates the first partition with the type freebsd-ufs, and from it loads loader.efi. 3. loader.efi loads and boots the kernel, as described in loader(8). The vt(4) system console is automatically selected when booting via UEFI. FILES
/boot/boot1.efi First stage UEFI bootstrap /boot/boot1.efifat msdosfs(5) FAT file system image containing boot1.efi for use by bsdinstall(8) and the bootcode argument to gpart(8). /boot/loader.efi Final stage bootstrap /boot/kernel/kernel default kernel /boot/kernel.old/kernel typical non-default kernel (optional) SEE ALSO
vt(4), msdosfs(5), boot(8), gpart(8) HISTORY
UEFI boot support first appeared in FreeBSD 10.1. AUTHORS
UEFI boot support was developed by Benno Rice <benno@FreeBSD.org>, Ed Maste <emaste@FreeBSD.org>, and Nathan Whitehorn <nwhitehorn@FreeBSD.org>. The FreeBSD Foundation sponsored portions of the work. CAVEATS
EFI environment variables are not supported by loader(8) or the kernel. boot1.efi loads loader.efi from the first FreeBSD-UFS file system it locates, even if it is on a different disk. boot1.efi cannot load loader.efi from a ZFS(8) file system. As a result, UEFI does not support a typical root file system on ZFS configura- tion. BSD
October 17, 2014 BSD
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