[Bug 2152142] Re: do-release-upgrade fails to upgrade 24.04 to 26.04 on raspberry-pi 4B

[Daniel Tang]

*** This bug is a duplicate of bug 2151216 ***
    https://bugs.launchpad.net/bugs/2151216

** This bug has been marked a duplicate of bug 2151216
   Force switch to piboot-try on Raspberry Pi

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https://bugs.launchpad.net/bugs/2152142

Title:
  do-release-upgrade fails to upgrade 24.04 to 26.04 on raspberry-pi 4B

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

Bug description:
  Hi, reopen bug 2150583 because the problem remains

  $ do-release-upgrade -d

  always fails

  
  Checking package manager
  Reading package lists... Done    
  Building dependency tree... Done 
  Reading state information... Done

  Foreign Packages Installed

  The following unofficial packages are currently installed:

  libopenexr-3-1-30........Installed from: UbuntuESMApps 
  lynis....................Installed from: CISOfy 
  syncthing................Installed from: Syncthing 

  
  It is recommended to install supported versions from the Ubuntu 
  archive, and try the upgrade again. 

  Do you want to continue the upgrade anyways?

  Continue [yN] y

  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  This may be caused by unofficial packages installed on the system. 
  Please try replacing the following packages with official versions 
  from the Ubuntu archive, and then try the upgrade again. 

  libopenexr-3-1-30 
  lynis 
  syncthing 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree... Done 
  Reading state information... Done

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: ubuntu-release-upgrader-core 1:24.04.28
  ProcVersionSignature: Ubuntu 6.8.0-1053.57-raspi 6.8.12
  Uname: Linux 6.8.0-1053-raspi aarch64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: arm64
  CasperMD5CheckResult: unknown
  CloudArchitecture: aarch64
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSubPlatform: config-disk (/dev/mmcblk0p1)
  CrashDB: ubuntu
  Date: Sun May 10 21:23:53 2026
  PackageArchitecture: all
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
  SourcePackage: ubuntu-release-upgrader
  Symptom: release-upgrade
  UpgradeStatus: Upgraded to noble on 2026-05-10 (0 days ago)

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