[Bug 2147213] Re: [resolute] Unsupported platform 'Raspberry Pi 4 Model B Rev 1.2'.

[Dave Jones]

This sounds like the upgrade has somehow managed to leave flash-kernel
in place, and *not* install piboot-try, which is the replacement for it
on Raspberry Pis in resolute (and which should cause the removal of
flash-kernel by its installation as it "breaks, replaces, provides"
flash-kernel).

Can you check "apt policy piboot-try"? My guess is this will indicate it
is *not* installed.

If so, try "sudo apt install piboot-try" -- this *should* result in the
replacement and removal of flash-kernel (and possibly flash-kernel-
piboot as well, although that may hang around as an empty transitional
package). After this "sudo flash-kernel" should work (now provided by
piboot-try), as should "sudo apt -f install" to finish the upgrade.

I'd be very interested to see the full dist-upgrade log in this case, as
this is one upgrade that I'm particularly concerned about in the
resolute upgrade (I'd already tested it successfully with two questing
installs here, but evidently there's something I've missed!).

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to flash-kernel in Ubuntu.
https://bugs.launchpad.net/bugs/2147213

Title:
  [resolute] Unsupported platform 'Raspberry Pi 4 Model B Rev 1.2'.

Status in flash-kernel package in Ubuntu:
  New
Status in initramfs-tools package in Ubuntu:
  Confirmed

Bug description:
  When running do-release-upgrade on questing, it stopped with I believe
  this error

  update-initramfs: Generating /boot/initrd.img-7.0.0-1004-raspi
  Unsupported platform 'Raspberry Pi 4 Model B Rev 1.2'

  ProblemType: Package
  DistroRelease: Ubuntu 26.04
  Package: initramfs-tools 0.150ubuntu8
  ProcVersionSignature: Ubuntu 6.17.0-1006.6-raspi 6.17.2
  Uname: Linux 6.17.0-1006-raspi aarch64
  ApportVersion: 2.33.1-0ubuntu7
  Architecture: arm64
  CasperMD5CheckResult: unknown
  CloudArchitecture: aarch64
  CloudBuildName: server
  CloudID: nocloud
  CloudName: unknown
  CloudPlatform: nocloud
  CloudSerial:
   
  CloudSubPlatform: config-disk (/dev/mmcblk0p1)
  Date: Fri Apr  3 10:42:15 2026
  ErrorMessage: old initramfs-tools package postinst maintainer script subprocess failed with exit status 1
  ImageMediaBuild: 20210201.1
  PackageArchitecture: all
  Python3Details: /usr/bin/python3.14, Python 3.14.3, python3-minimal, 3.14.3-0ubuntu1
  PythonDetails: N/A
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.23.6ubuntu2
   apt  3.1.16
  SourcePackage: initramfs-tools
  Title: package initramfs-tools 0.150ubuntu8 failed to install/upgrade: old initramfs-tools package postinst maintainer script subprocess failed with exit status 1
  UpgradeStatus: Upgraded to resolute on 2026-04-03 (0 days ago)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/flash-kernel/+bug/2147213/+subscriptions