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[Bug 1480310] Re: dbus link request failed for service FOO: Unit name FOO is not valid.

 

This appears to be a regression in systemd.  I extracted the unit file
we're trying to link and manually linked it through systemctl and it
succeeded with 222-2ubuntu1, but failed with 223-1ubuntu1:

ubuntu@cherylj-wily4:~$ apt-cache policy systemd
systemd:
  Installed: 222-2ubuntu1
  Candidate: 223-1ubuntu1
  Version table:
     223-1ubuntu1 0
        500 http://nova.clouds.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
 *** 222-2ubuntu1 0
        100 /var/lib/dpkg/status

root@cherylj-wily4:~$ sudo systemctl link /var/lib/juju/init/juju-db-ubuntu-local/juju-db-ubuntu-local.service
Created symlink from /etc/systemd/system/juju-db-ubuntu-local.service to /var/lib/juju/init/juju-db-ubuntu-local/juju-db-ubuntu-local.service.

ubuntu@cherylj-wily4:~$ sudo systemctl disable /var/lib/juju/init/juju-db-ubuntu-local/juju-db-ubuntu-local.service
Removed symlink /etc/systemd/system/juju-db-ubuntu-local.service.

ubuntu@cherylj-wily4:~$ sudo apt-get upgrade
...

ubuntu@cherylj-wily4:~$ apt-cache policy systemd
systemd:
  Installed: 223-1ubuntu1
  Candidate: 223-1ubuntu1
  Version table:
 *** 223-1ubuntu1 0
        500 http://nova.clouds.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status

ubuntu@cherylj-wily4:~$ sudo systemctl link /var/lib/juju/init/juju-db-ubuntu-local/juju-db-ubuntu-local.service
Failed to execute operation: Unit name /var/lib/juju/init/juju-db-ubuntu-local/juju-db-ubuntu-local.service is not valid.

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https://bugs.launchpad.net/bugs/1480310

Title:
  dbus link request failed for service FOO: Unit name FOO is not valid.

Status in juju-core:
  Triaged
Status in systemd package in Ubuntu:
  New

Bug description:
  As seen in
      http://reports.vapour.ws/releases/2936/job/local-deploy-wily-amd64/attempt/136
  Juju cannot bootstrap on wily because 
     ERROR juju.service.systemd service.go:149 dbus link request failed for service
      "juju-db-jenkins-local-deploy-wily-amd64": Unit name
      /var/lib/juju/init/juju-db-jenkins-local-deploy-wily-amd64/juju-db-jenkins-local-deploy-wily-amd64.service
      is not valid.

  This error first occurred after the wily-slave got package updates.
  The released jujus get the same errors as the jujus under test. This
  issue is probably an Ubuntu packaging break.

  I am making the test non-voting since we can see table 1.24.3 no
  longer works.

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