Public bug reported:
Currently we have a different boot sequence on the Pi depending on which
release is used:
* Focal images (and prior) all use u-boot
* Groovy images (and onwards) don't
* However, upgraders from Focal to Groovy aren't forced off u-boot;
their boot configuration remains untouched
We should update user's boot configuration to migrate them off u-boot if
they're still on it prior to upgrade to impish. This should be added as
a quirk to do-release-upgrade. The primary complexity is that the Focal
boot configuration is split into three files which should be merged.
Logic from pibootctl's parser can be used for a lot of this.
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Assignee: Dave Jones (waveform)
Status: New
** Changed in: ubuntu-release-upgrader (Ubuntu)
Assignee: (unassigned) => Dave Jones (waveform)
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https://bugs.launchpad.net/bugs/1936401
Title:
Migrate Pi users away from u-boot in impish
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