Ah, I just noticed that immediate shutdowns work fine. Scheduled
shutdowns however are handled by logind, and that requires dbus. I'm
afraid this won't change.
This has been "fixed" in yakkety by pulling libpam-systemd and
consequently dbus into the container images, as we were able to make
init/systemd-sysv/systemd non-essential. This is quite an intrusive
change though, and not suitable for backporting.
So for now I'm afraid you need to install libpam-systemd if you need
scheduled shutdowns.
** Changed in: systemd (Ubuntu)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/1590838
Title:
scheduled shutdown -r does not work without dbus in xenial LXC
container
Status in systemd package in Ubuntu:
Won't Fix
Bug description:
The command "shutdown -r +5" doesn't work in a xenial lxc container. I
found this out by trying to use Landscape to restart a xenial lxc
container and the operation failed. I was told by the Landscape team
that the restart button simply does a "shutdown -r +5".
The problem seems to be that the dbus package is missing in the xenial
lxc image.
This is what happens:
root@xenialtest:/# shutdown -r +5
Failed to connect to bus: No such file or directory
Failed to connect to bus: No such file or directory
And if I install dbus:
root@xenialtest:/# shutdown -r +5
Shutdown scheduled for Wed 2016-06-08 19:28:44 UTC, use 'shutdown -c' to
cancel.
The issue happens whether I use the download template or the ubuntu
template when creating the LXC container:
root@davecorelaptop:/var/cache/lxc# lxc-create -t ubuntu -n test2
root@davecorelaptop:/var/cache/lxc# lxc-start -d -n test2
root@davecorelaptop:/var/cache/lxc# lxc-attach -n test2
root@test2:/# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
root@test2:/# shutdown -r +5
Failed to connect to bus: No such file or directory
Failed to connect to bus: No such file or directory
or
root@davecorelaptop:~# lxc-create -t download -n test
Setting up the GPG keyring
Downloading the image index
---
DIST RELEASE ARCH VARIANT BUILD
---
alpine 3.0 amd64 default 20160608_18:03
alpine 3.0 i386 default 20160608_17:50
alpine 3.1 amd64 default 20160608_17:50
alpine 3.1 i386 default 20160608_18:03
alpine 3.2 amd64 default 20160608_17:50
alpine 3.2 i386 default 20160608_17:50
alpine 3.3 amd64 default 20160608_17:50
alpine 3.3 i386 default 20160608_17:50
alpine edge amd64 default 20160608_17:50
alpine edge i386 default 20160608_17:50
centos 6 amd64 default 20160609_02:16
centos 6 i386 default 20160609_02:16
centos 7 amd64 default 20160609_02:16
debian jessie amd64 default 20160608_22:42
debian jessie arm64 default 20160609_02:38
debian jessie armel default 20160608_22:42
debian jessie armhf default 20160608_22:42
debian jessie i386 default 20160608_22:42
debian jessie powerpc default 20160608_22:42
debian jessie ppc64el default 20160608_22:42
debian jessie s390x default 20160608_22:42
debian sid amd64 default 20160608_22:42
debian sid arm64 default 20160608_22:42
debian sid armel default 20160608_22:42
debian sid armhf default 20160608_22:42
debian sid i386 default 20160608_22:42
debian sid powerpc default 20160608_22:42
debian sid ppc64el default 20160608_22:42
debian sid s390x default 20160608_22:42
debian stretch amd64 default 20160608_22:42
debian stretch arm64 default 20160608_22:42
debian stretch armel default 20160608_22:42
debian stretch armhf default 20160608_22:42
debian stretch i386 default 20160608_22:42
debian stretch powerpc default 20160608_22:42
debian stretch ppc64el default 20160608_22:42
debian stretch s390x default 20160608_22:42
debian wheezy amd64 default 20160608_22:42
debian wheezy armel default 20160608_22:42
debian wheezy armhf default 20160608_22:42
debian wheezy i386 default 20160608_22:42
debian wheezy powerpc default 20160609_02:38
debian wheezy s390x default 20160608_22:42
fedora 22 amd64 default 20160609_01:27
fedora 22 armhf default 20160112_01:27
fedora 22 i386 default 20160609_01:27
fedora 23 amd64 default 20160609_01:27
fedora 23 i386 default 20160609_01:27
gentoo current amd64 default 20160608_14:12
gentoo current i386 default 20160608_14:12
opensuse 13.2 amd64 default 20160609_00:53
oracle 6 amd64 default 20160609_11:40
oracle 6 i386 default 20160609_11:40
oracle 7 amd64 default 20160609_11:40
plamo 5.x amd64 default 20160608_21:36
plamo 5.x i386 default 20160608_21:36
plamo 6.x amd64 default 20160608_21:36
plamo 6.x i386 default 20160608_21:36
ubuntu precise amd64 default 20160609_03:49
ubuntu precise armel default 20160609_03:49
ubuntu precise armhf default 20160609_03:49
ubuntu precise i386 default 20160609_03:49
ubuntu precise powerpc default 20160609_03:49
ubuntu trusty amd64 default 20160609_03:49
ubuntu trusty arm64 default 20160609_03:49
ubuntu trusty armhf default 20160609_03:49
ubuntu trusty i386 default 20160609_03:49
ubuntu trusty powerpc default 20160609_03:49
ubuntu trusty ppc64el default 20160609_03:49
ubuntu wily amd64 default 20160609_03:49
ubuntu wily arm64 default 20160609_03:49
ubuntu wily armhf default 20160609_03:49
ubuntu wily i386 default 20160609_03:49
ubuntu wily powerpc default 20160609_03:49
ubuntu wily ppc64el default 20160609_07:06
ubuntu xenial amd64 default 20160609_03:49
ubuntu xenial arm64 default 20160609_07:06
ubuntu xenial armhf default 20160609_03:49
ubuntu xenial i386 default 20160609_03:49
ubuntu xenial powerpc default 20160609_03:49
ubuntu xenial ppc64el default 20160609_03:49
ubuntu xenial s390x default 20160609_03:49
ubuntu yakkety amd64 default 20160609_03:49
ubuntu yakkety arm64 default 20160609_03:49
ubuntu yakkety armhf default 20160609_03:49
ubuntu yakkety i386 default 20160609_03:49
ubuntu yakkety powerpc default 20160609_03:49
ubuntu yakkety ppc64el default 20160609_03:49
ubuntu yakkety s390x default 20160609_03:49
---
Distribution: ubuntu
Release: xenial
Architecture: amd64
Downloading the image index
Downloading the rootfs
Downloading the metadata
The image cache is now ready
Unpacking the rootfs
---
You just created an Ubuntu container (release=xenial, arch=amd64,
variant=default)
To enable sshd, run: apt-get install openssh-server
For security reason, container images ship without user accounts
and without a root password.
Use lxc-attach or chroot directly into the rootfs to set a root password
or create user accounts.
root@davecorelaptop:~# lxc-start -d -n test
root@davecorelaptop:~# lxc-attach -n test
root@test:/# shutdown -r +5
Failed to connect to bus: No such file or directory
Failed to connect to bus: No such file or directory
I cleared my /var/cache/lxc before doing these 2 tests. The tests were
done around 11:00 AM Eastern time on June 9 2016.
Note that a "shutdown -r now" works properly. The problem happens only
when I specify minutes.
And also note that installing the dbus package also fixes the issue.
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