Hi,

I have two questions:

1)
I have RAID 5 active array which is mounted to, say /myMount . I tried to unmount it
But it says device is busy. So, I checked disk use by
But it does not say any thing, i. e., the disk is not in use. Why could not I unmount it?

2)
I checked my RAID array with fsck -f /dev/md0 and after few correction it became clean. I checked it twice to make sure. Then I copied some good files from other disk to RAID. Everything is fine except few files (2 files) are corrupted because I could not open it, I could not change their previllage. I happend before also on the same RAID array. What is the reason for this?

I tried to do fsck but now I have unmount problem that I have mentioned above (question 1).

Thanks for your help.

One thing I should mention: Linux umount has a "-l" option:

Second - on some systems, you need to use "fuser /dev/whateveritsmountedon", not "fuser /Mymount"


Finally, you could use "lsof" instead of fuser, though it gives you more than you need.

Hi pcunix,

Thanks a lot for information. I will try your suggestions. However, I have used both
and I did not get any output in both cases.