I am trying to upgrade my system (Linux mint 17):
$ sudo apt-get upgrade
And this is the output, (I have tried this more than once so I am copy+pasting the latest output)
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back: facter libqt5gui5 linux-generic linux-headers-generic linux-image-generic mintupdate python-pip
0 upgraded, 0 newly installed, 0 to remove and 7 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up puppetmaster (3.8.1-1puppetlabs1) ...
- Starting puppet master
could not change to group "pe-puppet"
Could not change to user pe-puppet: Invalid user: pe-puppet
invoke-rc.d: initscript puppetmaster, action "start" failed.
dpkg: error processing package puppetmaster (--configure): subprocess installed post-installation script returned error exit status 74
Errors were encountered while processing: puppetmaster
E: Sub-process /usr/bin/dpkg returned an error code (1)
What is the issue with puppetmaster?