[Bug 1590838] Re: scheduled shutdown -r does not work without dbus in xenial LXC container

Martin Pitt martin.pitt at ubuntu.com
Fri Jun 17 17:43:11 UTC 2016


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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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 at 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 at 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 at davecorelaptop:/var/cache/lxc# lxc-create -t ubuntu -n test2
  root at davecorelaptop:/var/cache/lxc# lxc-start -d -n test2
  root at davecorelaptop:/var/cache/lxc# lxc-attach -n test2

  root at test2:/# lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 16.04 LTS
  Release:	16.04
  Codename:	xenial

  root at 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 at 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 at davecorelaptop:~# lxc-start -d -n test
  root at davecorelaptop:~# lxc-attach -n test

  root at 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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