[arch-dev-public] systemd 215 group names

[Dave Reisner]

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