[Bug 2086774] Re: [SRU] Add CM5 to flash-kernel database

[Steve Ramage]

Assuming you are on Ubuntu 24.04.2, and also I can't speak to the wisdom
of the following. :D. But I assume this will all be fixed in 24.04.03 or
24.04.04.  But to get around all the errors I did the following. Your
mileage may vary, and I can't speak to the wisdom of what I'm doing
below :D.

1. I ran an apt-get dist-upgrade to upgrade everything, this will fail.
2. I then downloaded  a few newer versions of packages, from the links above. You should find the packages yourself instead of trusting blind links from account that posts every 5 years :).

wget http://launchpadlibrarian.net/794517346/flash-kernel_3.107ubuntu13~24.04.4_arm64.deb
wget https://people.canonical.com/~juergh/lp2111928/linux-buildinfo-6.8.0-1028-raspi_6.8.0-1028.32+cbd1_arm64.deb
wget https://people.canonical.com/~juergh/lp2111928/linux-headers-6.8.0-1028-raspi_6.8.0-1028.32+cbd1_arm64.deb
wget https://people.canonical.com/~juergh/lp2111928/linux-image-6.8.0-1028-raspi_6.8.0-1028.32+cbd1_arm64.deb
wget https://people.canonical.com/~juergh/lp2111928/linux-modules-6.8.0-1028-raspi_6.8.0-1028.32+cbd1_arm64.deb

The linux images are in a message in the 2nd bug report. I don't
remember where I got the first from, but you just need to find the fixed
version for the flash kernel.

3. dpkg -i *.deb

This will fail, but that's fine, it should complain about newer images
of linux-image-6.8.0, I would make sure that 6.8.0-1028 installs though,
if not try the following:

3a. apt-get install -f

(I think it will find one more package, it needs if the debs can't
install).


4. I then remove the newer version of the kernel to stop it from upgrading

apt-get remove linux-image-6.8.0-1029-raspi

5. Then remove the current kernel

apt-get remove --purge linux-image-6.8.0-1018-raspi linux-
headers-6.8.0-1018-raspi linux-modules-6.8.0-1018-raspi

You'll get a prompt asking you to abort, hit no.

6. Hold the packages that we installed

sudo apt-mark hold flash-kernel \
  linux-buildinfo-6.8.0-1028-raspi \
  linux-headers-6.8.0-1028-raspi \
  linux-image-6.8.0-1028-raspi \
  linux-modules-6.8.0-1028-raspi

I hope this will stop future upgrades from breaking the system maybe.


7. Before rebooting make sure dpkg -i *.deb completes without errors, and that apt-get dist-upgrade says there is nothing to do.

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https://bugs.launchpad.net/bugs/2086774

Title:
  [SRU] Add CM5 to flash-kernel database

Status in flash-kernel package in Ubuntu:
  Fix Released
Status in flash-kernel source package in Noble:
  Fix Released
Status in flash-kernel source package in Oracular:
  Fix Released

Bug description:
  [ Impact ]

  flash-kernel unable to complete successfully on the CM5 (also implying
  kernel upgrades will fail).

  [ Test Plan ]

  * Boot $series release image on CM5
  * sudo flash-kernel
  * Note "Unsupported platform error"
  * sudo apt install -t $series-proposed flash-kernel
  * sudo flash-kernel
  * flash-kernel complete successfully

  To guard against regression, re-test on other supported platforms

  [ Where problems could occur ]

  Only the database db/all.db is changed. Test plan includes test of
  operation on other supported platforms to guard against regression,
  and checks before and after states to ensure issue is present and
  actually fixed.

  [ Other Info ]

  Note to SRU reviewers: on the subject of the version number, I've
  bumped it to the plucky version (plus a ~release suffix) simply
  because after diff'ing noble->oracular->plucky the only differences
  are in the changelog, so the version may as well reflect that this is
  effectively the (current) plucky version back-ported (I say "current"
  because next on the todo list is to merge flash-kernel in plucky to
  upstream's 3.108).

  Add entry for the Raspberry Pi CM5 to the flash-kernel devices
  database, specifically:

  Machine: Raspberry Pi Compute Module 5 Rev 1.0
  Machine: Raspberry Pi Compute Module 5 Rev *
  Kernel-Flavors: raspi raspi-realtime
  Method: pi
  DTB-Id: bcm2712-rpi-cm5-cm5io.dtb
  U-Boot-Script-Name: bootscr.rpi
  Required-Packages: u-boot-tools

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