[Bug 1799839] [NEW] not possible to use "Repair broken packages"

[Brian Murray]

Public bug reported:

The menu item "Repair broken packages" calls the following command:

env RELEASE_UPGRADER_NO_SCREEN=1 python3 "/usr/lib/python3/dist-
packages/DistUpgrader/dist-upgrade.py" --partial --frontend
DistUpgradeViewText --datadir /usr/share/ubuntu-release-upgrader

However, that fails with the following:

Your python install is corrupted. Please fix the '/usr/bin/python'
symlink.

This is because of the _pythonSymlinkCheck function in
DistUpgradeController.py (provided by ubuntu-release-upgrader) using
os.readlink('/usr/bin/python') but not os.readlink() on what the first
os.readlink() call returned. That being said the whole function should
be updated to see if python3 is being used.

** Affects: friendly-recovery (Ubuntu)
     Importance: High
         Status: Triaged

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: High
         Status: Triaged


** Tags: bionic cosmic rls-dd-incoming

** Tags added: bionic cosmic rls-dd-incoming

** Changed in: friendly-recovery (Ubuntu)
       Status: New => Triaged

** Changed in: friendly-recovery (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1799839

Title:
  not possible to use "Repair broken packages"

Status in friendly-recovery package in Ubuntu:
  Triaged
Status in ubuntu-release-upgrader package in Ubuntu:
  Triaged

Bug description:
  The menu item "Repair broken packages" calls the following command:

  env RELEASE_UPGRADER_NO_SCREEN=1 python3 "/usr/lib/python3/dist-
  packages/DistUpgrader/dist-upgrade.py" --partial --frontend
  DistUpgradeViewText --datadir /usr/share/ubuntu-release-upgrader

  However, that fails with the following:

  Your python install is corrupted. Please fix the '/usr/bin/python'
  symlink.

  This is because of the _pythonSymlinkCheck function in
  DistUpgradeController.py (provided by ubuntu-release-upgrader) using
  os.readlink('/usr/bin/python') but not os.readlink() on what the first
  os.readlink() call returned. That being said the whole function should
  be updated to see if python3 is being used.

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