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!

closed as off-topic by user3215, user117103, Eric Carvalho, αғsнιη, Charles Green Nov 8 '14 at 14:47

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This describes a problem that can't be reproduced that seemingly went away on its own or was only relevant to a very specific period of time. It's off-topic as it's unlikely to help future readers." – guntbert, Eric Carvalho, αғsнιη
If this question can be reworded to fit the rules in the help center, please edit the question.

  • Anybody ever resolved? – user3215 Jun 22 '12 at 3:14
  • I myself closed it as I cannot replicate the problem! – user3215 Nov 7 '14 at 4:18

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.


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

  • 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

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