Arch Linux

lewis1711

Member

Registered: 2009-09-14

Posts: 12

fsck complains my unmounted drive is mounted.

I'm on a live CD, trying to fix a corrupted file system. I have to replace a superblock or something, so I am doing this;

mint@mint ~ $ sudo fsck -b 98304 -y -t ext3 /dev/sda4
fsck 1.40.8 (13-Mar-2008)
e2fsck 1.40.8 (13-Mar-2008)
fsck.ext3: Device or resource busy while trying to open /dev/sda4
Filesystem mounted or opened exclusively by another program?

I am 100% certain the drive is NOT mounted. Here is proof;

sudo fuser -vm /dev/sda4

(no output) AND

mint@mint ~ $ sudo umount /dev/sda4
umount: /dev/sda4: not mounted

Any help appreciated.

jargoman

Member

Registered: 2008-03-10

Posts: 33

Re: fsck complains my unmounted drive is mounted.

Hmmm that's a strange one.

df

will show your mounted partitions.

make sure you didn't cd into /dev/sda4. and make sure no other programs are trying to access sda4 ie gparted, another file system checker. Maybe the partition isn't sda4 in the livecd.