Repair GRUB2 boot through GRUB1 in Ubuntu9.10

GRUB1 is not used for GRUB boot of Ubuntu9.10. GRUB2 (beta version) is used instead ). After Windows is reinstalled, the original LiveCD method cannot be used for restoration. If you have a tool disk that has been started by GRUB, use the tool disk to start it. Press c on the GRUB menu to enter the command line status. In GRUB & gt; enter grub & gt; find/boot/grub/core at the prompt. img (with/boot points)

GRUB 1 is not used for GRUB boot in Ubuntu 9.10. GRUB 2 (beta version) is used instead ). After Windows is reinstalled, the original Live CD method cannot be used for restoration.

If you have a tool disk that has been started by GRUB, use the tool disk to start it. Press c on the GRUB menu to enter the command line status. At the GRUB> prompt, enter

Grub> find/boot/grub/core. img (find/grub/core. img for/boot partitions) (hdx, y) (display the found Partition Number)

Grub> root (hdx, y)

Grub> kernel/boot/grub/core. img (/kernel/grub/core. img for the boot partition)

Grub> boot

After running the boot command, you can go to the GRUB 2 menu, start Ubuntu, and then run

Sudo grub-install/dev/sda (or sdb, sdc, etc., depending on the number of hard disks) to repair GRUB.

Note: If the Ubuntu boot partition uses the ext4 format, you must have grub that supports the ext4 format to fix it.