[Bug 376377] Re: package apache2.2-common 2.2.11-2ubuntu2 failed to install/upgrade: subprocess post-installation script returned error exit status 1

[Andreas Olsson]

This seems to be the trigger...

chown: invalid group: `root:adm'

Seems like your adm group is missing. Getting any form group information
from NIS, LDAP och similiar?

Can you give me the output of these two commands?

$ cat /etc/group | egrep -e "^adm:"
$ getent group | egrep -e "^adm:"

** Changed in: apache2 (Ubuntu)
       Status: New => Incomplete

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package apache2.2-common 2.2.11-2ubuntu2 failed to install/upgrade: subprocess post-installation script returned error exit status 1
https://bugs.launchpad.net/bugs/376377
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