Ext4_quota cannot set limit: Function not implemented - Debian 7 / 8

Edit /etc/fstab

 

Change this line:

/dev/mapper/vg_web150-lv_home /home                   ext4    defaults,errors=continue           1 2

 

make it look like this:

 

 

Then type:

cd /usr/local/directadmin/scripts

./fstab.sh

 

followed by:

cd /usr/local/directadmin

echo "action=rewrite&value=quota" >> data/task.queue


solved