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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!

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