I am getting this error in my log.
systemd[1]: Starting File System Quota Check...
systemd[1]: Started File System Quota Check.
systemd[1]: Starting Enable File System Quotas...
systemd[1]: quotaon.service: main process exited, code=exited, status=2/INVALIDARGUMENT
systemd[1]: Failed to start Enable File System Quotas.
systemd[1]: Unit quotaon.service entered failed state.
Current versions are:
ii quota 4.01-8+deb8u1 amd64 disk quota management tools
ii quotatool 1:1.4.12-2 amd64 tool to edit disk quotas fr
This is a known bug
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=788963
the bug was fixed in version 4.03-2