[Bug 2038900] Re: setting XDG RUNTIME to not 'tty' and SUDO_UID and PKEXEC_UID being unset causes TypeError traceback

[Nick Rosbrook]

This looks fine for the mantic release, but for future development can
you please share the actual traceback you observed?

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https://bugs.launchpad.net/bugs/2038900

Title:
  setting XDG RUNTIME to not 'tty' and SUDO_UID and PKEXEC_UID being
  unset causes TypeError traceback

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Committed
Status in ubuntu-release-upgrader source package in Mantic:
  Fix Committed

Bug description:
  Running do-release-upgrade in an environment with XDG_RUNTIME set to
  something other than tty, and also in an environment where SUDO_UID
  and PKEXEC_UID are unset (e.g. ssh'd straight into a root session, no
  sudo) causes a TypeError traceback in the upgrade logs.

  Reproducer:
  lxc launch images:ubuntu/lunar --vm
  lxc exec vmname bash
  apt update
  apt upgrade
  export XDG_RUNTIME=unspecified
  do-release-upgrade -d -f -f DistUpgradeViewNonInteractive

  None will eventually be printed, then you can go to the upgrade log
  and find the traceback.

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