Reinstalling Lilo

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this covers straight unencrypted installs. just a simple installation with everything installed under / mounted under /dev/sda1. No LVM or additional drives. if you're encrypted or have an otherwise fancy install this wiki expects that you understand the intricacies of your own system. for a more in depth look at how to chroot your installation media (which can be extremely useful for more that just lilo) see here

Chroot method

insert and boot your installation media

login as root when prompted but do not run setup

Mounting

mount /dev/sdX1 /mnt   (where /dev/sdx1 is your / partition)
mount -o bind /dev /mnt/dev
mount -o bind /proc /mnt/proc
mount -o bind /sys /mnt/sys

Chrooting

Once everything is mounted, we can chroot to it:

chroot /mnt /bin/bash

now simply run liloconfig and follow the prompts


Booting your system from the installation media

often times you can boot your system from the installation media as well simply boot the installation media and on the very first page are the following instructions


In a pinch, you can boot your system from here with a command like:
boot: huge.s root=/dev/sda1 rdinit= ro 

In the example above, /dev/sda1 is the / Linux partition.

once booted run liloconfig