Ubuntu
ubuntu-release-upgrader package

dist upgrade quirk for linux metapackage crashes if package is not in cache

Bug #1511831 reported by Brian Murray
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-release-upgrader (Ubuntu)
Fix Released
High
Brian Murray
Wily
Fix Released
High
Brian Murray

Bug Description

The Ubuntu Error Tracker has some reports indicating the release upgrader can crash when running the install_linux_metapackage quirk. Here is the Traceback:

Traceback (most recent call last):
  File "/tmp/ubuntu-release-upgrader-tsk6132y/wily", line 8, in <module>
    sys.exit(main())
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeMain.py", line 240, in main
    if app.run():
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeController.py", line 1837, in run
    return self.fullUpgrade()
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeController.py", line 1790, in fullUpgrade
    if not self.askDistUpgrade():
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeController.py", line 978, in askDistUpgrade
    if not self.cache.distUpgrade(self._view, self.serverMode, self._partialUpgrade):
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeCache.py", line 215, in wrapper
    res = f(*args, **kwargs)
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeCache.py", line 624, in distUpgrade
    self.post_upgrade_rule()
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeCache.py", line 463, in post_upgrade_rule
    self.quirks.run("PostDistUpgradeCache")
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeQuirks.py", line 102, in run
    func()
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeQuirks.py", line 136, in wilyPostDistUpgradeCache
    self._install_linux_metapackage()
  File "/tmp/ubuntu-release-upgrader-tsk6132y/DistUpgrade/DistUpgradeQuirks.py", line 660, in _install_linux_metapackage
    if not cache[linux_metapackage].is_installed:
  File "/usr/lib/python3/dist-packages/apt/cache.py", line 205, in __getitem__
    raise KeyError('The cache has no package named %r' % key)
KeyError: "The cache has no package named 'linux-rpi2'"

These are the buckets:
https://errors.ubuntu.com/problem/37aa9dc242cd00bad6a1f3b598e883b860754d29
https://errors.ubuntu.com/problem/ab6522ce1b227b12711e3d624d0cf780660e0b23
https://errors.ubuntu.com/problem/994bf05fae85fbcd44f721495db6518f2d5a126d

Related branches

lp:ubuntu-release-upgrader
Brian Murray (brian-murray)
Changed in ubuntu-release-upgrader (Ubuntu):
importance: Undecided → High
status: New → Triaged
tags: added: wily xenial
Brian Murray (brian-murray)
Changed in ubuntu-release-upgrader (Ubuntu):
assignee: nobody → Brian Murray (brian-murray)
status: Triaged → In Progress
Changed in ubuntu-release-upgrader (Ubuntu Wily):
status: New → Triaged
importance: Undecided → High
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package ubuntu-release-upgrader - 1:16.04.2

---------------
ubuntu-release-upgrader (1:16.04.2) xenial; urgency=medium

  * DistUpgrade/DistUpgradeQuirks.py: protect against the linux metapackage
    not being available in the cache. (LP: #1511831)

 -- Brian Murray <email address hidden> Mon, 02 Nov 2015 09:50:02 -0800

Changed in ubuntu-release-upgrader (Ubuntu):
status: In Progress → Fix Released
Brian Murray (brian-murray)
Changed in ubuntu-release-upgrader (Ubuntu Wily):
assignee: nobody → Brian Murray (brian-murray)
status: Triaged → In Progress
Revision history for this message
Adam Conrad (adconrad) wrote : Please test proposed package

Hello Brian, or anyone else affected,

Accepted ubuntu-release-upgrader into wily-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/ubuntu-release-upgrader/1:15.10.14.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Changed in ubuntu-release-upgrader (Ubuntu Wily):
status: In Progress → Fix Committed
tags: added: verification-needed
Revision history for this message
rctay (rctay89) wrote :

To get this fix, one has to run do-release-upgrade with --proposed/-p, instead of apt-get install ubuntu-release-upgrader-core/wily-proposed, is this correct? Would the first lead to ubuntu being upgraded to wily-proposed instead of wily?

Revision history for this message
Brian Murray (brian-murray) wrote : Re: [Bug 1511831] Re: dist upgrade quirk for linux metapackage crashes if package is not in cache

On Sun, Nov 08, 2015 at 10:15:06AM -0000, rctay wrote:
> To get this fix, one has to run do-release-upgrade with --proposed/-p,
> instead of apt-get install ubuntu-release-upgrader-core/wily-proposed,
> is this correct?

Yes, it is true that you need to use the -p switch.

> Would the first lead to ubuntu being upgraded to wily- proposed
> instead of wily?

No, using the -p switch does not affect enabling proposed. However, if
you already have it enabled it will remain enabled.

--
Brian Murray

Revision history for this message
Brian Murray (brian-murray) wrote :

The three error buckets that are linked to in the description do not show any crashes using the new version of ubuntu-release-upgrader. Additionally, looking at the crashes about ubuntu-release-upgrader in the error tracker we don't see this crash with the version from wily-proposed. As such I am marking this as verification-done.

tags: added: verification-done
removed: verification-needed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package ubuntu-release-upgrader - 1:15.10.14.2

---------------
ubuntu-release-upgrader (1:15.10.14.2) wily-proposed; urgency=medium

  * DistUpgrade/DistUpgradeQuirks.py: protect against the linux metapackage
    not being available in the cache. (LP: #1511831)

 -- Brian Murray <email address hidden> Wed, 04 Nov 2015 13:25:30 -0800

Changed in ubuntu-release-upgrader (Ubuntu Wily):
status: Fix Committed → Fix Released
Revision history for this message
Brian Murray (brian-murray) wrote : Update Released

The verification of the Stable Release Update for ubuntu-release-upgrader has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

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