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

[Dave Jones]

This is something I need to fix in piboot-try: ignore the dtb it
reports. Even back in flash-kernel (before piboot-try) the dtb it
reported was basically irrelevant as the method used copies *all* base
device-trees to the boot partition.

At boot time the boot firmware detects which board it is booting on and
selects the correct base device-tree (which is why all of them are
always copied, to ensure you can move your storage between Pi models and
still have it boot).

The only reason it's still reporting a dtb (and it's always for the Pi
5) is that the flash-kernel logic requires *some* dtb to be specified
(but it doesn't actually matter which one). Still, now piboot-try is
split out I can simply squash that output (and remove the requirement
for DTB-Id in the database).

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

Status in flash-kernel package in Ubuntu:
  Triaged
Status in initramfs-tools package in Ubuntu:
  Invalid
Status in piboot-try package in Ubuntu:
  Triaged

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)

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