Hi, If you're a [testing] user who's installed systemd 215 with a pkgrel of 1-3, you're interested in this. A new feature of systemd, sysusers, was introduced which creates users/groups on demand for stateless systems. The upstream files ship the groups 'dialout', 'tape', and 'cdrom'. With systemd-215-4, these are properly modified to Arch's 'uucp', 'storage', and 'optical', respectively. If you installed a prior version, you likely now have these former groups in your /etc/group -- these can be safely deleted, as we will not currently use them. In other words, you can safely run: sed -i.bkup '/^\(dialout\|tape\|cdrom\):x:/d' /etc/group Make sure to diff the result against /etc/group.bkup afterwards and delete the backup if not needed. Cheers, Dave