[Bug 1854487] Re: Add Raspberry Pi 4 rev 1.2 entry

[Łukasz Zemczak]

Hello Dave, or anyone else affected,

Accepted flash-kernel into eoan-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/flash-
kernel/3.98ubuntu5.3 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-eoan to verification-done-eoan. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-eoan. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: flash-kernel (Ubuntu Eoan)
       Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-eoan

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https://bugs.launchpad.net/bugs/1854487

Title:
  Add Raspberry Pi 4 rev 1.2 entry

Status in flash-kernel package in Ubuntu:
  Fix Released
Status in flash-kernel source package in Eoan:
  Fix Committed

Bug description:
  Impact
  ======

  A new variant of the Raspberry Pi 4 (revision 1.2) has been released
  (presumably to deal with the USB-C power issue [1]). Without a
  corresponding entry in the flash-kernel database, users of this board
  will receive an error whenever flash-kernel is run (e.g. on kernel
  updates); see LP: #1848790 comment #44 for an example.

  [1] https://www.scorpia.co.uk/2019/06/28/pi4-not-working-with-some-
  chargers-or-why-you-need-two-cc-resistors/

  Test Case
  =========

  * On a Pi 4 Rev 1.2 board, boot an Eoan image (working around LP: #1848790 as necessary)
  * Attempt to run "sudo flash-kernel"
  * Observe the "Unsupported platform" message
  * Enable proposed
  * Run "sudo apt upgrade" to upgrade the flash-kernel installation
  * Run "sudo flash-kernel" once more, observe no error

  Regression Potential
  ====================

  Extremely low; the change is a one liner adding a matching "Machine"
  line to the database. It doesn't remove or alter existing lines. The
  worst case scenario is that the Machine line doesn't match the model
  in the device-tree (in which case it'll still produce "Unsupported
  platform").

  Other Info
  ==========

  The following branch contains the relevant changes:
  https://code.launchpad.net/~waveform/ubuntu/+source/flash-kernel/+git
  /flash-kernel/+ref/ubuntu/eoan-devel

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