Grub

reinstall grub

grub-install --recheck --no-floppy --root-directory=/path/to/root /dev/hda

determine entry to be booted next time

grub-reboot entry-number

grub's command line

grub> kernel /boot/vmlinuz
grub> initrd /boot/initrd
grub> boot

backup partition table

To backup your partition table:

sfdisk -d /dev/hda > hda.pt

To restore it:

sfdisk /dev/hda < hda.pt

See also

• booting from USB