update-manager crashes after enabling ubuntu pro

Bug #2063050 reported by Madgemade
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This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ubuntu
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Bug Description

Seems like it might be a duplicate of Bug #2058133.

Update manager GUI no longer works after enabling Ubuntu Pro. Manually updating via CLI is fine. There seem to be other issues with the pro tools as well.

$ update-manager

(update-manager:6577): dbind-WARNING **: 19:31:44.465: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
WARNING:root:can not import unity GI Namespace Dbusmenu not available
Unexpected error(s) occurred.
For more details, see the log: /var/log/ubuntu-advantage.log
To file a bug run: ubuntu-bug ubuntu-advantage-tools
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/UpdateManager/backend/InstallBackendAptdaemon.py", line 248, in _on_finished
    trans_failed=trans_failed)
  File "/usr/lib/python3/dist-packages/UpdateManager/backend/__init__.py", line 95, in _action_done
    self.window_main.start_available(is_cancelled_update)
  File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 242, in start_available
    self.refresh_cache()
  File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 442, in refresh_cache
    self._get_ua_security_status()
  File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 264, in _get_ua_security_status
    s = json.load(p.stdout)
  File "/usr/lib/python3.6/json/__init__.py", line 299, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "/usr/lib/python3.6/json/__init__.py", line 354, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.6/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.6/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: update-manager 1:18.04.11.23
ProcVersionSignature: Ubuntu 4.15.0-224.236-generic 4.15.18
Uname: Linux 4.15.0-224-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.29
Architecture: amd64
CurrentDesktop: MATE
Date: Sun Apr 21 19:29:27 2024
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to bionic on 2018-05-15 (2168 days ago)

Revision history for this message
Madgemade (madgemade-v) wrote :
Madgemade (madgemade-v)
description: updated
Revision history for this message
Madgemade (madgemade-v) wrote :

In case it is useful for anyone, running "snap remove canonical-livepatch" fixed the crash. It was this "canonical-livepatch" utility which was producing an error that cascades into the update-manager.

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