Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

It's really frustrating.

Three week's back story:

I faced the following error on ubuntu 10.04 LTS Desktop,

error : unknown filesystem
grub rescue>

I tried many solutions online apart from 1 and 2 and eventually I could not boot my system at all. Trying those solutions could not completely fix it and then I had to face initramfs(could not remember exact error).

As I could not fix, a week back I did a fresh install of Ubuntu 12.04 Desktop and after a week i.e, now, I got the same grub rescue> error. Could anybody tell me what's the reason behind this error?. Is there any problem with the Ubuntu or it's a problem at my side due to some reason?.

My machine description:

I have two hard disks, windows is installed on one hard disk and on another it's Ubuntu. I installed the operating systems(vista, ubuntu) such a way one is not known to another, I mean to say, I'll unplug one hard disk and install the Ubuntu and similarly I'll unplug the ubuntu hard disk, installed the vista on another hard disk, generally I do(I actually don't want to run into grub/boot.ini issues installing OSs connecting both the hard disks). When ever I power on the computer windows will boot by default, and I'll generally boot to ubuntu by pressing F8 and selecting the ubuntu hard disk.

Any help is greatly appreciated!. Thank you!

share|improve this question
    
Anybody ever resolved? –  user3215 Jun 22 '12 at 3:14

2 Answers 2

this is probably what you are looking for: https://help.ubuntu.com/community/Grub2/Troubleshooting good luck

share|improve this answer
2  
Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. –  Eliah Kagan Jul 2 '12 at 10:31

may be one of the harddisk got some bad sectors, try to run them separately , if it always happens with the secondary hdd where ubuntu resides may be the hdd has gone bad. if you don't think the hdd is bad , give more details about parttions on both the disks and also the type of boot efi or normal.

you can attach a screenshot of gparted or disk utility for both the disks.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.