Bug#753392: systemd: fails to boot if system has a cgroup mount point

[Tzafrir Cohen]

Package: systemd
Version: 44-11+deb7u4
Severity: normal

Dear Maintainer,
I have installed systemd on this Wheezy laptop as well as on a test
Jessie system and on both systems the system failed to later boot due to
the same reason: the system already has an fstab entry for cgroup (for
using lxc). This has failed the boot of systemd.

It took me a while to detect the issue at the first time, as the actual
error message was burried before many unrelated log messages.

Is there any way to detect the issue ahead of time?

I filed this as a normal severity, but I would take no issue with
demoting it to wishlist, if there's really nothing to be done about it.

-- System Information:
Debian Release: 7.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=he_IL.utf8, LC_CTYPE=he_IL.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages systemd depends on:
ii  dpkg                 1.16.15
ii  initscripts          2.88dsf-41+deb7u1
ii  libacl1              2.2.51-8
ii  libaudit0            1:1.7.18-1.1
ii  libc6                2.13-38+deb7u1
ii  libcap2              1:2.22-1.2
ii  libcryptsetup4       2:1.4.3-4
ii  libdbus-1-3          1.6.8-1+deb7u1
ii  libkmod2             9-3
ii  liblzma5             5.1.1alpha+20120614-2
ii  libpam0g             1.1.3-7.1
ii  libselinux1          2.1.9-5
ii  libsystemd-daemon0   44-11+deb7u4
ii  libsystemd-id128-0   44-11+deb7u4
ii  libsystemd-journal0  44-11+deb7u4
ii  libsystemd-login0    44-11+deb7u4
ii  libudev0             175-7.2
ii  libwrap0             7.6.q-24
ii  udev                 175-7.2
ii  util-linux           2.20.1-5.3

Versions of packages systemd recommends:
ii  libpam-systemd  44-11+deb7u4

Versions of packages systemd suggests:
ii  python        2.7.3-4+deb7u1
ii  python-cairo  1.8.8-1+b2
ii  python-dbus   1.1.1-1
pn  systemd-gui   <none>

-- no debconf information