1

After update from 12.04 to 12.10 beta, stuck on grub rescue

view story
linux-howto

http://askubuntu.com – I just tried to upgrade my system from 12.04 to 12.10 beta. Everything seemed to go fine, but at reboot, it just drops to grub rescue with a "file not found" error. Trying to follow some tutorials online, I setup all the variables, and they seem to be ok, but when I try to enter insmod normal I get a "file not found" error. I checked with ls /boot/grub and there are several files there (load.cfg, grub.cfg, affs.mod and others) but no normal.mod. So I can't go into normal mode. What can I do? Would things be easier by using a livecd, and if so, what should I do? Thanks Cristian (HowTos)

Songlist's picture
Submitted by Songlist on 10/05/2012

Stories similar to After update from 12.04 to 12.10 beta, stuck on grub rescue

I recently repartitioned my hdd and I have damaged grub on my system. On boot I get the grub rescue prompt and I have to go through the following steps in order to boot normally:

set root=(hd0,msdos6) set prefix=(hd0,msdos6)/boot/grub insmod normal normal

(Those steps were found on another post on here!).

I'm very tired of repeating this on every boot, how do I permanently fix grub>

I bought a new computer a couple of weeks ago and installed Ubuntu from a book DVD. Everything went fine and I was happily using Ubuntu until I found out that it was the 32 bit version. I want to use the 64 bit version since I just spent the money to replace my old computer with a 64 bit system. I created a DVD with the 64 bit ISO from the Ubuntu site and installed that.

i had deleted a partition using windows 7 in my dual boot system then when i restarted my pc file system error was shown on screen with grub rescue

after some reading from internet i typed in following command at grub rescue

ls ls (hd0,msdos5)/ set root= (hd0,msdos5) ls / set prefix=(hd0,msdos5)/boot/grub insmod /boot/grub/linux/mod normal

my linux files are in msdos5 as seen using ls command

F12 Live CD boots and runs fine. I installed to hard drive and now get:

Grub loading. error: unknown filesystem grub rescue> _ (it is hung - I cannot type any commands here)

I think I somehow have to use root and setup but don't remember and can't find specifics

I have a dual boot PC with Windows 7 and Ubuntu.

I installed F16 64 from a Nov'11 DVD a few days ago, was trying to find files from F16, and then grub disappeared. I followed the instructions to replace bash, as it was missing, but the same grub error still keeps showing.

Code: grub loading welcome to grub! error:  file not found entering rescue mode grub rescue > This thread shows how to reinstall grub1. This thread shows how to

wolfcore wrote:Before rebooting, during the configuration of grub, I moved /boot/grub/ to /boot/efi/grub, because that was my efi-directory:Move back the directory to /boot/grub. /boot/efi/grubx64.efi is configured to look into /boot/grub (or rather <ESP>/grub, rather than <ESP>/efi/grub).

I have a dual boot PC with Win7 and Ubuntu.

I did a dumb thing... I forgot that Ubuntu 10.04 (Lucid) switched to Grub2 which puts a ton of *.mod files (kernel modules) in /boot/grub. I thought they were soundtrack files put there erroneously and moved them. Needless to say, the next reboot was traumatic. I was presented with something I had no memory of ever seeing...