Virtualmin and Quotas
Loaded Virtualmin onto a Linode running Centos 6. Ran into some errors when trying to add a domain:
Failed to create virtual server : setquota: Cannot stat() mounted
device /dev/root: No such file or directory setquota: Mountpoint (or
device) / not found or has no quota enabled. setquota: Not all
specified mountpoints are using quota.
And indeed, from a root prompt:
# <strong>quotaon -p -a</strong>
quotaon: Cannot stat() mounted device /dev/root: No such file or directory
group quota on /home (/dev/xvdc) is off
user quota on /home (/dev/xvdc) is off
Hmm, yep, that's the same error. This thread on Virtualmin's forum was a big clue, here's the first step to resolution:
# <strong>mount</strong>
...
/dev/xvda on / type ext3 (rw,noatime,grpquota,errors=remount-ro,usrquota)
...
Right, so our root / partition is indeed on /dev/xvda
so we can
create the missing symbolic link:
# <strong>ln -s /dev/xvda /dev/root</strong>
# <strong>quotaon -a</strong>
quotaon: cannot find /home/aquota.group on /dev/xvdc [/home]
quotaon: cannot find /home/aquota.user on /dev/xvdc [/home]
#
Good, no error message. But things are still not working yet:
# <strong>quotaon /home</strong>
quotaon: cannot find /home/aquota.group on /dev/xvdc [/home]
quotaon: cannot find /home/aquota.user on /dev/xvdc [/home]
Before proceeding, in /etc/fstab
please be sure "usrquota" and
"grpquota" are in the options line:
/dev/xvdc /home ext3 grpquota,errors=remount-ro,usrquota,grpquota,noatime,rw 0 1
Now, instead of going thru a dozen cryptic commands, go back to Webmin (if Virtualmin is up, click Webmin on the top line). Open the System tab and then Disk Quotas. You should see the /home partition listed, and it probably says that quotas are not active. Simply hit "Enable Quotas" and the display should change to:
*Filesystem *
*Type *
*Mounted From *
*Status *
*Action *
/home (users) /home (groups)
Linux Native Filesystem
Xen device C
User and Group Quotas Active
Disable Quotas
...Done!