Constant Shift

Unknown user in statoverride file

When trying to install a new package dependency (flex) for Monit 5, I ran into this error:

dpkg: unknown group 'munin' in statoverride file
E: Sub-process /usr/bin/dpkg returned an error code (2)

I recognized the munin user from a previous munin install. Since I had already purged the Munin package, I simply removed all references of the munin user from the statoverride file in /var/lib/dpkg/statoverride. I also checked other munin references by using grep:

$ grep -ril 'munin' /var/lib/*

Once all Munin references were removed, I was able to install flex successfully.