-# default jessie groups + kvm & systemd-journal
-usermod -aG cdrom,floppy,sudo,audio,dip,video,plugdev,netdev,systemd-journal ian
+# default jessie groups + kvm, systemd-journal, adm
+usermod -aG adm,cdrom,floppy,sudo,audio,dip,video,plugdev,netdev,systemd-journal ian