[Bug 1940773] Re: "debconf: unable to initialize frontend: Gnome" displayed in terminal during release upgrade

[Kakurady Drakenar]

** Summary changed:

- "debconf: unable to initialize frontend: Gnome" displayed in terminal during release upgrade when system language is set to Chinese
+ "debconf: unable to initialize frontend: Gnome" displayed in terminal during release upgrade

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https://bugs.launchpad.net/bugs/1940773

Title:
  "debconf: unable to initialize frontend: Gnome" displayed in terminal
  during release upgrade

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

Bug description:
  from /var/log/dist-upgrade/ :

  正在设置 tzdata (2020d-1ubuntu1) ...
  debconf: unable to initialize frontend: Gnome
  Wide character in print at /usr/share/perl5/Debconf/Log.pm line 39.
  debconf: (Couldn’t recognize the image file format for file “/usr/share/pixmaps/ubuntu-logo.png” at /usr/lib/x86_64-linux-gnu/perl5/5.30/Glib/Object/Introspection.pm line 67.)
  debconf: falling back to frontend: Dialog

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubuntu-release-upgrader-core 1:20.10.16
  ProcVersionSignature: Ubuntu 5.8.0-63.71-generic 5.8.18
  Uname: Linux 5.8.0-63-generic x86_64
  ApportVersion: 2.20.11-0ubuntu50.7
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Sun Aug 22 09:28:19 2021
  InstallationDate: Installed on 2016-03-03 (1997 days ago)
  InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160303)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: Upgraded to groovy on 2021-08-22 (0 days ago)
  VarLogDistupgradeTermlog:

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