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Old 10-31-2014, 01:59 PM   #1
Registered: Dec 2013
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Grub Rescue

In my laptop I am running unbunt 12 LTS and window 7. some how during startup something went wrong and goes to grub rescue. I googled the issue and gone through steps shown as:

error: no such partition.
grub rescue> ls
(hd0) (hd0,msdos8) (hd0,msdos7) (hd0,msdos6) (hd0,msdos5) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1)

grub rescuve> ls (hd0,1)/
error: unknown file system

I check from (hd0,1-5) and all of the above. I got same message "error:unknown file system"

Is there any way I can resolve this issue.
Old 10-31-2014, 02:10 PM   #2
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Use a 'live' system to look at your hard drive. Try mounting your hard drive partitions. Report back any error info.
Old 10-31-2014, 03:23 PM   #3
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Registered: Dec 2011
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Distribution: OpenSUSE 13.2 64bit-Gnome on ASUS U52F
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Boot from the install media you used, DVD or Flashdrive whatever you used.

While you are in the live session look for the Boot Repair Tool in a google search follow the steps to install it. Or copy then from here (Line by line pasted them on the terminal)
sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install-y boot-repair
Once it is installed run it by typing
sudo boot-repair
and that should take care of the problem

Let us know how it works for you
Old 10-31-2014, 08:54 PM   #4
Fred Caro
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An alternative is use 'supergrub2' live disk to check for 'any bootable' select ubuntu and (once booted) go to a terminal and as "admin" install grub to /dev/sda

sudo grub-install /dev/sda
sudo grub-update

You will need an internet connection.

Old 10-31-2014, 10:16 PM   #5
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I check from (hd0,1-5) and all of the above. I got same message "error:unknown file system"
Which would cause me to wonder why you didn't try 5, 7 and 8 partitions. We can only guess here with the minimal information you posted.


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