LILO and GRUB: Boot Loaders Made Simple
LILO (Linux Loader) and GRUB (GRand Unified Bootloader) are both configured as a primary boot loader (installed on the MBR) or secondary boot loader (installed onto a bootable partition). Both work with supporting operating systems such as Linux, FreeBSD, Net BSD, and OpenBSD. They can work with unsupported operating system, such as Microsoft Windows XP, in the configuration file. Both allow users – root users – to boot into single-user-mode.
LILO
LILO comes as standard on all distributions of Linux. To work with LILO an administrator edits the file /etc/lilo.conf to set a default partition to boot, the time-out value, which choices should appear in a menu, kernel parameters, which partition to mount as the root partition, whether or not to initially load a RAM disk, where LILO should be installed, and other information. The administrator must then update the loader by running the LILO command.
GRUB
GRUB combines installations with one install command and allows for MD5 encryption of passwords. When a configuration file is configured incorrectly, the system reverts to the command-line prompts.
Also:
Having a problem with grub on your Linux box can really ruin your computing experience. That’s why it’s always handy to make a bootable grub floppy and stick it in a drawer somewhere, just in case.
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