[Bug 1975433] Re: Allow skipping one LTS release, upgrading from version N.04LTS to N+2.04LTS

[mai ling]

** Tags removed: third-party-packages

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https://bugs.launchpad.net/bugs/1975433

Title:
  Allow skipping one LTS release, upgrading from version N.04LTS to
  N+2.04LTS

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

Bug description:
  While I am generally happy with LTS being stable, oftentimes I find
  myself in the need to upgrade one package to a more recent version.

  Most of the times the version I seek is not included in backports and
  instead published by individuals or orgs via ppa.

  Eventually this version gets included in the second next LTS release,
  so an alternative to third party sources is to perform a LTS upgrade.

  But Ubuntu only supports this LTS version to immediately next LTS
  release, while I have installed version N and the current version is
  N+2, so I must perform two upgrades to get that newer package, thus
  double the effort and time spent.

  I wish Ubuntu offered even unsupported a method to skip one
  intermediary LTS upgrade and allow direct LTS to LTS+2 upgrades, or
  find a way to provide LTS+2 popular packages to LTS releases.

  In my particular case I am struggling with a previously not reported
  issue of samba that crashes; their wiki asks to reproduce on a
  maintained version, while my current LTS and even the LTS+1 both ship
  discontinued versions. I tried running a maintained version from a
  third party ppa, but that doesn't ship a debugging package containing
  symbols which are required by upstream when submiting issues. I'd like
  to avoid getting dirty resorting to the ultimate solution of compiling
  from source.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: ubuntu-release-upgrader-core 1:22.04.10
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  Date: Mon May 23 02:33:46 2022
  InstallationDate: Installed on 2021-11-30 (173 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to jammy on 2022-01-25 (117 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2022-01-25 18:44:34.507058
   Log time: 2022-01-25 18:44:42.846637
   Log time: 2022-01-25 18:45:20.578650
  VarLogDistupgradeTermlog:

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