What are the Ubuntu Grub Rescue repair methods?
This article mainly introduces what Ubuntu Grub Rescue repair methods have, with certain reference value, interested friends can refer to, I hope you have a lot of gains after reading this article, let Xiaobian take you to understand.
Restart the computer and go directly to grub rescue mode.
GRUB loading
error: no such partition
grub rescue>
Even XP can not enter, know what to do!
GRUB2 repair method:
1. Ubuntu Grub Rescue Double OS Reload Windows causes Grub2 to be rewritten Fix
Method 1 grub4dos0.4.4
Add grub4dos boot to Windows boot entry (not much to say, see the top sticker), restart to select grub, enter (/boot separate partition remove/boot) under the command line
Code:
grub>find --set-root /boot/grub/core.img
grub>kernel /boot/grub/core.img
grub>boot
Go to grub2 menu, enter the system and then execute
Code:
sudo grub-install /dev/sd?
Ubuntu Grub Rescue Method 2 Repair after entering Livecd
Quote:
sudo -i
mount your root partition/mnt
mount your/boot partition/mnt/boot #if any
#Mount your other partitions, if any
#rebuild grub to sda mbr
grub-install --root-directory=/mnt /dev/sda
2. Ubuntu Grub Rescue due to root partition uuid change caused by the normal boot, can only enter the grub rescue mode repair
Code:
grub rescue>set grub rescue>prefix=(hd?,?)/ grub grub rescue>root=hd?,? grub rescue>set root=hd?,? grub rescue>set prefix=(hd?,?)/ boot/grub grub rescue>set grub rescue>root=hd?,? grub rescue>prefix=(hd?,?)/ boot/grub grub rescue>insmod /boot/grub/normal.mod grub rescue>normal
At this time, you can call up/boot/grub/grub.cfg and modify the corresponding uuid.
Change to Command Line
grub>insmod /boot/grub/linux.mod grub>set root=hd?,? grub>linux /boot/vmlinuz-*** root=/dev/sd?? grub>initrd /boot/initrg.img-****
enter the system
hd?,? Is the partition sda where the grub file is located? Yes/partition.
3. Repair when grub module and configuration file grub.cfg are damaged and cannot be started
Livcd Launcher Enter Trial
Quote:
sudo -i
mount your root partition/mnt
mount your/boot partition/mnt/boot #if any
#Mount your other partitions, if any
#rebuild grub to sda mbr
grub-install --root-directory=/mnt /dev/sda
#rebuild grub.cfg
mount --bind /proc /mnt/proc mount --bind /dev /mnt/dev mount --bind /sys /mnt/sys chroot /mnt update-grub mount/mnt/sys mount/mnt/dev mount/mnt/proc Thank you for reading this article carefully. I hope that Xiaobian will share "What are the Ubuntu Grub Rescue repair methods?" This article is helpful to everyone. At the same time, I hope that everyone will support it. Pay attention to the industry information channel. More knowledge is waiting for you to learn!
