[Bug 1085844] [NEW] update-manager uses subprocess.Popen incorrectly when calling dpkg

[Steve Kowalik]

Public bug reported:

While upgrading a machine from Precise to Quantal, I had the upgrade
bomb out at the end with initramfs-tools postinst exiting 1. This was
handled nicely, in my opinion, with update-manager explaining the issue
and saying it will run 'dpkg --configure -a'. However, when it does
this, it does not give the full path to subprocess.Popen(), so Python
gives a few tracebacks with "dpkg: no such file or directory"

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: dist-upgrade

** Tags added: dist-upgrade

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https://bugs.launchpad.net/bugs/1085844

Title:
  update-manager uses subprocess.Popen incorrectly when calling dpkg

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  While upgrading a machine from Precise to Quantal, I had the upgrade
  bomb out at the end with initramfs-tools postinst exiting 1. This was
  handled nicely, in my opinion, with update-manager explaining the
  issue and saying it will run 'dpkg --configure -a'. However, when it
  does this, it does not give the full path to subprocess.Popen(), so
  Python gives a few tracebacks with "dpkg: no such file or directory"

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