Problem Enabling ubuntu quotas

Hi,

I've been trying to enable user and group quotas for the last two days on Ubuntu 14.04 LTS and Debian, but it seems that linode kernel does not have support to it.

This configuration should be pretty straight forward, so I believe it have some underlaying condition out of my scope.

Can you help me with that?

Basically I have done all steps in here:

https://mohannetworking.wordpress.com/2 … on-ubuntu/">https://mohannetworking.wordpress.com/2012/09/29/how-to-configure-disk-quotas-on-ubuntu/

But also

/etc/rc.local

#

ln -s /dev/xvda /dev/root

/etc/init.d/quota restart

As shown here: https://forum.linode.com/viewtopic.php?t=8294#p64363

And I get:

root@moodle01:~# quotaon -avug

quotaon: using //quota.group on /dev/root [/]: No such process

quotaon: Quota format not supported in kernel.

quotaon: using //quota.user on /dev/root [/]: No such process

quotaon: Quota format not supported in kernel.

root@moodle01:~# modprobe quota_v1

modprobe: ERROR: ../libkmod/libkmod.c:556 kmodsearchmoddep() could not open moddep file '/lib/modules/3.18.5-x86_64-linode52/modules.dep.bin'

root@moodle01:~# modprobe quota_v2

modprobe: ERROR: ../libkmod/libkmod.c:556 kmodsearchmoddep() could not open moddep file '/lib/modules/3.18.5-x86_64-linode52/modules.dep.bin'

I also tried using Ubuntu kernel linux-image-3.16.0-31-generic but no success either (in this case, with moddep but no quota module).