Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I asked this question earlier. I opted for mearging the Ubuntu partition with the free partition, since I was not sure with the size for /home. Thing went bad GRUB got corrupted, may be because Ubuntu partition UUID was changed due to partition deletion. After googling for some time I got that problem fixed using this post but now I am not able to view my win7 partition in linux.

Here is my Partition table configuration(from gpartd):

enter image description here

Now when I try to mount win7 drive I get following error:

Error mounting: mount exited with exit code 1: helper failed with: mount: according to mtab, /dev/sda5 is already mounted on / mount failed

Another problem that I am at loss of 3GB of space on sda5 (ubuntu) partition. gparted is showing its a 35 GB partition but Disk utility shows its a 38 GB partition as shown bellow: enter image description here Why is it so.How do I recover it.


Contents of /etc/fstab: enter image description here

share|improve this question
Would you mind putting up a print out of /etc/fstab? The GParted graphic above says that the mount points for both Ubuntu and Win7 are /. You can't mount them both there simultaneously, but you could mount Win7 at, say, /Win7. – boehj Apr 28 '11 at 20:04

I think you can fix it with Mount-Manager.
But first backup your fstab (sudo cp /etc/fstab /etc/fstab.bak).

You have not lost 3GB, this is how each software interpret the space of the disk. Look at your others partitions, all are "smaller" at GParted.

share|improve this answer
Yes, that's exactly right concerning the 'loss' of space issue. It's frustrating that things aren't standardized but that's how it works unfortunately. – boehj Apr 28 '11 at 20:13

Your Answer


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.