[Bug 1904890] Re: [SRU] Please merge flash-kernel 3.103 from Debian unstable

[Brian Murray]

** Also affects: flash-kernel (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: flash-kernel (Ubuntu Groovy)
   Importance: Undecided
       Status: New

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Title:
  [SRU] Please merge flash-kernel 3.103 from Debian unstable

Status in flash-kernel package in Ubuntu:
  New
Status in flash-kernel source package in Focal:
  New
Status in flash-kernel source package in Groovy:
  New

Bug description:
  [ Impact ]

  This version includes support for the Pi 400 (which was unavailable at
  Focal's release), and for pattern matching against the machine's model
  in the dtb (e.g. "Raspberry Pi *"). This is necessary for flash-kernel
  to operate successfully on Pi models booted with out of date firmware
  (e.g. older boot firmware marks the Pi 400 as "Raspberry Pi ? Rev
  1.0"). Hence, back-porting this version to Focal is a pre-requisite
  for Pi 400 support.

  [ Test Case ]

  * Flash Ubuntu 20.04 image to an SD card
  * Boot SD card on an older Pi model (e.g. 3B) and run apt update && apt upgrade (this is required as the focal release firmware cannot boot on the 400)
  * Reboot SD card on the Pi 400
  * Attempt flash-kernel; note failure with "unsupported platform"
  * Enable proposed; upgrade flash-kernel to proposed version
  * flash-kernel should run successfully during upgrade (regardless of whether /proc/device-tree/model has "Raspberry Pi 400" or "Raspberry Pi ?", depending on firmware revision)

  [ Regression Potential ]

  Minimal; the diff from 3.100 to 3.103 is minimal (board additions to
  the database and some new translations), whilst the ubuntu changes
  we're SRUing are already present in groovy and have been working
  happily there since release.

  [ Original Description ]

  Please merge flash-kernel 3.103 from Debian unstable.

  Updated changelog and diff against Debian unstable to be attached
  shortly.

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