Comment # 7 on bug 900558 from Thomas Blume

(In reply to Olaf Hering from comment #6)
> booting with "single ro init=/bin/bash" shows that root is mounted read-only.
> booting with "single ro" shows that some silly systemd unit is remounting
> root read-write, after mounting everything else.
> booting sles11sp3 with "single ro" goes straight to the login prompt in
> emergency mode.
> 
> So I pass that back to systemd maintainers, who have to deal with silly
> upstream decisions...


The culprit is systemd-remount-fs.service that doesn't care about the ro option
from the command line.
A systemd package with a proposed fix is available at:

http://download.opensuse.org/repositories/home:/tsaupe:/branches:/openSUSE:/13.1:/Update:/bsc900558/standard/

Olaf, can you try this?