Fix bootloader with MCNLive

Van MandrivaClub.NL Wiki

[bewerk] Howto fix your bootloader with MCNLive

If your bootloader is broken you can easily reload it with MCNLive.

First step is to boot the livecd. You can boot either the normal way and a bit faster with "livecd init 3". Log on as root with user: root, password: root.

On most systems your harddisk partitions will be mounted in /mnt/. If not, you can mount it with:

mkdir /mnt/<device>
mount /dev/<device> /mnt/<device>

Were <device> is the name of your partition. (E.g. hda1, sda6 etc.)

Now mount the proc filesystem, so we access kernel functions:

mount -t proc none /mnt/<device>/proc

Now bind the dev directory to the distribution you want to repair, so we can access the devices:

mount -t none /dev /mnt/<device>/dev -o bind

Now you can change root to the distribution you want to repair:

chroot /mnt/<device>

At this step you are ready to use the applications of your distribution. First repair your bootloader, e.g. lilo or grub:

vim /etc/lilo.conf

or:

vim /boot/grub/menu.lst

Now install your bootloader:

lilo -v

or:

grub-install

If you have no errors, you can reboot:

exit
umount /mnt/<device>/dev
umount /mnt/<device>/proc
umount /mnt/<device>
reboot