Can't resize lvm volume "lv_home is in use. e2fsck: Cannot continue, aborting"

Question

I would like to shrink my logical volume for home directory, so that I can extend volume for root.

df -h

/dev/mapper/vg_mitoscomp-lv_root   50G   33G   15G  70% /
/dev/mapper/vg_mitoscomp-lv_home   53G  180M   51G   1% /home

lsblk

─sdc2                                                                      8:34   0 111.3G  0 part
  ├─vg_mitoscomp-lv_root (dm-0)                                           253:0    0    50G  0 lvm  /
  ├─vg_mitoscomp-lv_swap (dm-1)                                           253:1    0   7.6G  0 lvm  [SWAP]
  └─vg_mitoscomp-lv_home (dm-2)                                           253:2    0  53.8G  0 lvm  /home

I can successfully unmount /home, but than I can't perform health check nor can I resize volume.

[root@MITOs-Comp ~]# e2fsck -f /dev/mapper/vg_mitoscomp-lv_home
e2fsck 1.41.12 (17-May-2010)
/dev/mapper/vg_mitoscomp-lv_home is in use.
e2fsck: Cannot continue, aborting.

root@MITOs-Comp ~]# resize2fs /dev/mapper/vg_mitoscomp-lv_home 10G
resize2fs 1.41.12 (17-May-2010)
resize2fs: Device or resource busy while trying to open /dev/mapper/vg_mitoscomp-lv_home
Couldn't find valid filesystem superblock.

What is the output of running `fuser -m` on the mount point? — Bratchley, Apr 18 '14 at 14:01
How about `grep lv_home /proc/mounts` and also `grep dm-2 /proc/mounts`? — derobert, Jul 16 '14 at 21:57
Try `fuser -am` . The process that might be using the partition might be getting as some other user. — Sreeraj, Dec 11 '14 at 07:39
For people who get here through google, make sure you've stopped your NFS servers as well. — kristopolous, Apr 30 '23 at 00:09

score 0 · Answer 1 · answered Apr 26 '14 at 02:18

0

This is probably doesn't tell you something you already know since you said the umount was successful. But do a "more /etc/mtab". This is the kernels mount file and the device shouldn't be mounted and not listed in the /etc/mtab file.

answered Apr 26 '14 at 02:18

user62612

61
2

1

`/proc/mounts` is the kernel view; `/etc/mtab` may or may not be symlink'd there. – derobert Jul 16 '14 at 21:58

score 0 · Answer 2 · edited Nov 10 '14 at 16:36

I had the same thing.

I had the /data (/dev/VolGroup00/LogVol07 ) partion umounted, but block device could not be checked with fsck.ext4 with

e2fsck 1.41.12 (17-May-2010)
/dev/VolGroup00/LogVol07 is mounted.
e2fsck: Cannot continue, aborting.

error

lsof showed nothing.

Then I've made #cat /etc/mtab, and found that I had /tmp folder mounted to /data/tmp folder.

umount /tmp solved the problem.

Can't resize lvm volume "lv_home is in use. e2fsck: Cannot continue, aborting"

2 Answers2