[Bug 2116266] Re: Support tryboot's A/B booting on Raspberry Pi

Dave Jones 2116266 at bugs.launchpad.net
Mon Jul 21 17:06:46 UTC 2025


As this has now landed, the seed merge can go ahead -- this will unbreak
the flash-kernel operation on the dailies, and should unbreak upgrades
from plucky->questing (devel).

** Also affects: ubuntu-meta (Ubuntu)
   Importance: Undecided
       Status: New

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Title:
  Support tryboot's A/B booting on Raspberry Pi

Status in flash-kernel package in Ubuntu:
  Fix Released
Status in ubuntu-meta package in Ubuntu:
  Triaged

Bug description:
  The Raspberry Pi's tryboot mechanism [1] permits an A/B booting
  structure that permits fallback in the event of bad boot assets (or a
  bad boot configuration). We already substantially patch flash-kernel
  for the Raspberry Pi (to permit moving an image between boards); we
  should adjust the existing "pi" method (or add a new "pi-something"
  method) to write new boot assets to a temporary location from which
  they can be tested with the "tryboot" mechanism.

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