[Bug 1792978] Re: initscript avahi-daemon, action "start" failed

[Jason Hobbs]

1) Testing
2) No, it's in baremetal
3) Attached.
4) The machine was deployed with maas - it's a bionic cloud image. We then install/configure maas, run some tests, and remove maas via purge, and repeat. This shows up sometimes on deployments after the initial one - avahi-daemon, or at least its pid file, is left in /var/run/avahi-daemon from a previous run. There are LOTS of commands run. The important ones seem like:

1) apt-get -q install -y avahi-utils maas-region-api maas-dns
2) apt-get -q autoremove --purge maas-common -y
3) apt-get -q autoremove --purge avahi-daemon -y
... repeat until failure


** Attachment added: "syslog"
   https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1792978/+attachment/5247981/+files/syslog

** Changed in: avahi (Ubuntu)
       Status: Incomplete => New

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https://bugs.launchpad.net/bugs/1792978

Title:
  initscript avahi-daemon, action "start" failed

Status in avahi package in Ubuntu:
  New

Bug description:
  When installing maas-region-controller, avahi-deamon failed to install
  because it was it seemed to already be running.

  
  $ apt-get -q install -y maas-region-controller
  ....
  [1invoke-rc.d: initscript avahi-daemon, action "start" failed.
  ● avahi-daemon.service - Avahi mDNS/DNS-SD Stack
     Loaded: loaded (/lib/systemd/system/avahi-daemon.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sat 2018-09-15 19:42:29 UTC; 9ms ago
     Process: 22726 ExecStart=/usr/sbin/avahi-daemon -s (code=exited, status=255)
   Main PID: 22726 (code=exited, status=255)
   
  Sep 15 19:42:29 leafeon systemd[1]: Starting Avahi mDNS/DNS-SD Stack...
  Sep 15 19:42:29 leafeon avahi-daemon[22726]: Daemon already running on PID 21868
  Sep 15 19:42:29 leafeon systemd[1]: avahi-daemon.service: Main process exit.../a
  Sep 15 19:42:29 leafeon systemd[1]: Failed to start Avahi mDNS/DNS-SD Stack.
  Sep 15 19:42:29 leafeon systemd[1]: avahi-daemon.service: Unit entered fail...e.
  Sep 15 19:42:29 leafeon systemd[1]: avahi-daemon.service: Failed with resul...'.
  Hint: Some lines were ellipsized, use -l to show in full.
  dpkg: error processing package avahi-daemon (--configure):
   subprocess installed post-installation script returned error exit status 1
  dpkg: dependency problems prevent configuration of avahi-utils:
   avahi-utils depends on avahi-daemon; however:
    Package avahi-daemon is not configured yet.

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