I want to install Dovecot on Ubuntu 12.04 LTS, and it recommends that we place the control files into a partition which will not be limited by the filesystem quota.

If I create an ext4 partition with 2 gigs, how do I remove the quota on that partition? I know the partitions are defined in /etc/fstab, and I think usrquota and grpquota have to be explicitly set to disabled.

But I am unsure what the entire line should look like.

Is it something like:

/dev/hda2       /       ext4    defaults,usrquota,grpquota        1       0        0

On the other hand, I found something called quotaon and quotaoff. Would this be used instead of fstab? Is there a difference?