[Bug 1938389] Re: package operation fails but gives no reason why

[Julian Andres Klode]

You can read /var/log/apt/term.log yourself. Embedding that nicely seems
hard, but then again, apport should have shown you the messages when you
reported the bug?

As the log tells you, you have installed the postfix mail server, but
configured an invalid hostname "04":

newaliases: warning: valid_hostname: numeric hostname: 04
newaliases: fatal: file /etc/postfix/main.cf: parameter mydomain: bad parameter value: 04

** Changed in: update-manager (Ubuntu)
   Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/1938389

Title:
  package operation fails but gives no reason why

Status in update-manager package in Ubuntu:
  New

Bug description:
  Distributor ID:	Ubuntu
  Description:	Ubuntu 21.04
  Release:	21.04
  Codename:	hirsute

  
  I update my machine
  updater runs
  then invariably I get a message that 
  "package operation fails"
  but no details
  ergo 
  this bug report

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: update-manager 1:21.04.10
  ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22
  Uname: Linux 5.11.0-25-generic x86_64
  ApportVersion: 2.20.11-0ubuntu65.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Thu Jul 29 09:48:58 2021
  GsettingsChanges:
   
  InstallationDate: Installed on 2015-08-23 (2166 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to hirsute on 2021-07-26 (2 days ago)
  modified.conffile..etc.default.apport:
   # set this to 0 to disable apport, or to 1 to enable it
   # you can temporarily override this with
   # sudo service apport start force_start=1
   enabled=0
  mtime.conffile..etc.default.apport: 2021-01-13T09:36:03.851337

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