Comment 4 for bug 1304008

* FYI, just usual post-install stuff in /var/log/apt/* ... selecting, preparing, unpacking, setting up, etc. No other postinst trails in /var/log/

* Another workaround/fix which creates groups as they need to be:
$ sudo apt-get --reinstall install libvirt-bin

rbeisner@130-5:~$ groups
rbeisner adm cdrom sudo dip plugdev libvirtd lpadmin sambashare

rbeisner@130-5:/var/log/apt$ egrep 'rbeisner|libvirt' /etc/group
adm:x:4:syslog,rbeisner
cdrom:x:24:rbeisner
sudo:x:27:rbeisner
dip:x:30:rbeisner
plugdev:x:46:rbeisner
libvirtd:x:111:rbeisner
rbeisner:x:1000:
lpadmin:x:112:rbeisner
sambashare:x:113:rbeisner
.

* Interesting that a reinstall of libvirt-bin creates the group membership as we had originally expected. There may be a logic error in the order of events during install via iso?