[Bug 1295596] Re: init: Failed to obtain startpar-bridge instance: Unknown parameter: INSTANCE

[peter swain]

(not related to the issue, but to a hang just after this message
appears, for which people may be googling the startpar-bridge message)

I found this continually as the last suspicious event before hang on an arm64 with an old 14.04 nfsroot system.
After this it would always hang at "nfs: server xx.xx.xx.xx not responding, still trying".

System used to work, but I was using this nfsroot on a new board.
It had hung partway thru apt-upgrade to modern 14.04 packages (before intended update to 16.10).
That hang was due to kernel issues on the new hardware.

Root cause of the hang was /run/shm being a directory, not a symlink.
Removing /nfsroot/run/shm fixed the hang.

Somewhere in the evolution of 14.04 the implementation of /run/shm
apparently changed, and interrupting update leaves system unbootable

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https://bugs.launchpad.net/bugs/1295596

Title:
  init: Failed to obtain startpar-bridge instance: Unknown parameter:
  INSTANCE

Status in upstart package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  I have came accross the failure of init in /var/log/dmesg
  init: Failed to obtain startpar-bridge instance: Unknown parameter: INSTANCE

  # ---
  Ubuntu development branch Trusty 14.04
  kernel Linux 3.13.0-18-lowlatency #38-Ubuntu SMP PREEMPT Mon Mar 17 22:08:57 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  apt-cache policy upstart
  upstart:
    Installed: 1.12.1-0ubuntu1
    Candidate: 1.12.1-0ubuntu1
    Version table:
   *** 1.12.1-0ubuntu1 0
          500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status

  Kind Regards,
  Martin

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