Dear all,
i move forward a first step, now I get a user session if i log in via ssh.
The issue was, that there was no systemd cgroup mounted. This is done by
/etc/init/systemd-logind.conf , but this (trusty) version, it is inhibited in a
container. Because i have lxcfs running on the host, I disabled this ...
pre-start script
[...]
mkdir -p /run/systemd
# mounting the cgroup does not work in LXC, there it uses cgmanager
#disabled if [ ! -e /run/container_type ] && ! mountpoint -q
/sys/fs/cgroup/systemd; then
mkdir -p /sys/fs/cgroup/systemd
mount -t cgroup -o nosuid,noexec,nodev,none,name=systemd
systemd /sys/fs/cgroup/systemd
#disabled fi
end script
... and now, i get at least a session on a ssh login:
ubuntu@celly:~$ loginctl user-status ubuntu
ubuntu (1000)
Since: Sat 2016-01-23 19:41:46 UTC; 50min ago
State: active
Sessions: c1
CGroup: systemd:/user/1000.user
└─c1.session
├─2418 sshd: ubuntu [priv]
├─2462 sshd: ubuntu@pts/5
├─2463 -bash
├─4752 loginctl user-status ubuntu
└─4753 pager
But it still don't work on a graphical login. Currently, i thing there is a
problem with the "seat" ...
ubuntu@celly:~$ loginctl show-seat seat0
Id=seat0
CanMultiSession=no
CanTTY=yes
CanGraphical=no
IdleHint=yes
IdleSinceHint=0
IdleSinceHintMonotonic=0
..., if I compare to my other plain vanilla Ubuntu PC:
gjaekel@jelly:~$ loginctl show-seat seat0
Id=seat0
ActiveSession=c2
CanMultiSession=yes
CanTTY=yes
CanGraphical=yes
Sessions=c6 c4 c2
IdleHint=no
IdleSinceHint=1453576925852281
IdleSinceHintMonotonic=83639894809
There, the are a lot of devices listed (and three desktop sessions)
gjaekel@jelly:~$ loginctl seat-status seat0
seat0
Sessions: c6 c4 *c2
Devices:
├─/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
│ input:input1 "Power Button"
├─/sys/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input0
│ input:input0 "Power Button"
[...]
but in the Desktop container, there is nothing at all:
ubuntu@celly:~$ loginctl seat-status seat0
seat0
Devices:
Now I think, there's another "container check" preventing to populate this seat
information. May some give me a hint what will do this job?
greetings
Guido
On 21.01.2016 09:50, Jäkel, Guido wrote:
>[...]
> Then, I was able to log in and Unity was starting. First things I want to do
> was to change some system settings via the GUI. We know, this is asking to
> authenticate; the same is needed to install software or "update the system"
> via the GUI. Now, the Dialogs working well, but then there is a dbus error
> displayed. Using loginctl at command line, it turns out that there is a
> seat, but no user session. It's the same if I log-in via ssh.
>
> ubuntu@celly:~$ loginctl
> SESSION UID USER SEAT
>
> 0 sessions listed.
>
>
> ubuntu@celly:~$ loginctl list-seats
> SEAT
> seat0
>
> 1 seats listed.
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