Init 1  (to disable /home and edit it perfectly)

1) add "usrquota,grpquota" to "/etc/fstab"
2) remount filesystem
3) quotacheck

mount -o remount /home

[root@bigboy tmp]# touch /home/aquota.user
[root@bigboy tmp]# chmod 600 /home/aquota.user

[root@bigboy tmp]# quotacheck -vagum
quotacheck: WARNING -  Quotafile /home/aquota.user was probably truncated.
Can't save quota settings...
quotacheck: Scanning /dev/hda3 [/home] done
quotacheck: Checked 185 directories and 926 files
[root@bigboy tmp]#

[root@bigboy tmp]# edquota -u mp3user

#init 3 or init 5

Enforcing quotas:
----------------
You can setup a cron job to run a script similar to the one below to achieve
this.

#!/bin/bash
quotacheck -vagu 

# edquota -t
# repquota