[gentoo-user] systemd and LUKS

[Frank Steinmetzger]

Hey list

after the many discussions here about systemd I had a flash of
objectivity (“Who cares if people rant about Lennart, the concept seems
sound and I don’t care about separate /usr”). So I wanted to try systemd
on my netbook.

I cloned the / partition from sda2 to sda7 and chrooted into it. In
there I followed the systemd Gentoo wiki¹, i.e. I configured the kernel,
installed systemd, added "-consolekit systemd" to my use flags, rebuilt
world with --new-use and added init=/usr/lib/systemd/systemd to the
kernel cmdline.

Rebooting works until the point of mounting /home, which is a LUKS
container. I get the message:
"A start job is running for dev-mapper-home.service"
and eventually a timeout and prompt for root password or Ctrl-D.

The wiki references a bug report that /etc/crypttab was ignored. Well, I
didn’t have one, but apparently my old crypt setup was heeded (because
systemd knew that I wanted sda5 mounted as home).

I tried researching the problem. One I found was a Gentoo forum thread
about LVM. I found out that I was missing CONFIG_DM_UEVENT. But enabling
it didn’t help either. I found files in the partition’s /dev directory,
which hinted that DEVTMPFS_MOUNT was not set. But I don’t suppose that’s
really a problem.

Does any of you have experience with this combination and would like to
share it? Thanks.

¹ http://gentoo-en.vfose.ru/wiki/Systemd



On a sidenote, for some reason, grub2 doesn’t find the kernel if I keep
the menuentry’s search commands which are created by grub2-mkconfig.
Only if I remove all the search --uuid...yadda yadda..., the entry
boots.
The boot partition (where the grub files lie) is still my normal / on
sda2. It then boots the systemd installation on sda7 which was detected
by os_prober.
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