[Bug 1636927] Re: upgrading kernel/gadget snap on Pi3 did not update dtb files

[Michael Vogt]

This is in progress now in the snapd and ubuntu-image. This will also
need changes in the gadget/kernel that are tracked here:

https://bugs.launchpad.net/snapd/+bug/1907056

** Changed in: snapd (Ubuntu)
       Status: Triaged => In Progress

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

** Changed in: ubuntu-image (Ubuntu)
       Status: New => In Progress

** Changed in: ubuntu-image (Ubuntu)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1636927

Title:
  upgrading kernel/gadget snap on Pi3 did not update dtb files

Status in snapd package in Ubuntu:
  In Progress
Status in ubuntu-image package in Ubuntu:
  In Progress

Bug description:
  when calling snap refresh on raspberry pi3 from stable to edge device broke.
  I refreshed core, gadget and kernel snap at the same time, in this order: core->gadget->kernel

  closer investigation showed that dtb files from new kernel snap were
  not copied over to boot/uboot

  this making kernel upgrades dangerous

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