[Bug 1890197] [NEW] mediawiki schema issue after do-release-upgrade -d from 18.04 to 20.04

[janl]

Public bug reported:

Hi,

I needed to upgrade the server where my mediawiki runs to to get unison
working from our laptops to it.  Therefore I ran 'do-release-upgrade -d'
to upgrade to focal - I've already done so for a couple of other things
including my laptops where this worked well.

But, the mediawiki database schema was not upgraded afterwards causing
error on login.  The interweb suggests running Update.php - but this
does not seem to be included in the mediawiki package.

$ dpkg -l mediawiki
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=====================================
ii  mediawiki      1:1.31.7-1   all          website engine for collaborative work
janl at mediawiki:~$ apt policy mediawiki
mediawiki:
  Installed: 1:1.31.7-1
  Candidate: 1:1.31.7-1
  Version table:
 *** 1:1.31.7-1 500
        500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.23
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Mon Aug  3 20:18:03 2020
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to focal on 2020-08-03 (0 days ago)
VarLogDistupgradeAptclonesystemstate.tar.gz:
 Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: polkit-agent-helper-1: pam_authenticate failed: Authentication failure
 Error executing command as another user: Not authorized
 
 This incident has been reported.
VarLogDistupgradeXorgFixuplog:
 INFO:root:/usr/bin/do-release-upgrade running
 INFO:root:No xorg.conf, exiting

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade focal

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https://bugs.launchpad.net/bugs/1890197

Title:
   mediawiki schema issue after do-release-upgrade -d from 18.04 to
  20.04

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Hi,

  I needed to upgrade the server where my mediawiki runs to to get
  unison working from our laptops to it.  Therefore I ran 'do-release-
  upgrade -d' to upgrade to focal - I've already done so for a couple of
  other things including my laptops where this worked well.

  But, the mediawiki database schema was not upgraded afterwards causing
  error on login.  The interweb suggests running Update.php - but this
  does not seem to be included in the mediawiki package.

  $ dpkg -l mediawiki
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name           Version      Architecture Description
  +++-==============-============-============-=====================================
  ii  mediawiki      1:1.31.7-1   all          website engine for collaborative work
  janl at mediawiki:~$ apt policy mediawiki
  mediawiki:
    Installed: 1:1.31.7-1
    Candidate: 1:1.31.7-1
    Version table:
   *** 1:1.31.7-1 500
          500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.23
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.4
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  Date: Mon Aug  3 20:18:03 2020
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to focal on 2020-08-03 (0 days ago)
  VarLogDistupgradeAptclonesystemstate.tar.gz:
   Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: polkit-agent-helper-1: pam_authenticate failed: Authentication failure
   Error executing command as another user: Not authorized
   
   This incident has been reported.
  VarLogDistupgradeXorgFixuplog:
   INFO:root:/usr/bin/do-release-upgrade running
   INFO:root:No xorg.conf, exiting

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