Public bug reported:
[Impact]
We still don't know exactly what causes the boot hang to happen on this
device, but latest eoan arm64 test images hang on the Pi3B+ when a
regular USB keyboard is attached. As we're continuing to find the root
cause, for now we decided that we'll be reverting the boot.scr changes
to not block further work.
The bug itself might be related to how ubuntu-image populates the boot
partition. Still, the boot.scr changes were not needed in eoan, so it's
safe to revert anyway.
[Test Case]
Build a test raspi3 image (armhf, arm64), flash various Pi devices and
make sure they still boot. This change will be extensively tested by
certification as well.
[Regression Potential]
As with any bootscript change, there might be subtle regressions
regarding boot-ability in various edge scenarios. We will be performing
extensive testing to make sure it does not regress. Also, this boot.scr
that we're reverting to was already in use on the eoan original images,
so it got a lot of testing on its own.
** Affects: flash-kernel (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: flash-kernel (Ubuntu Eoan)
Importance: Undecided
Status: In Progress
** Also affects: flash-kernel (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: flash-kernel (Ubuntu)
Status: New => Incomplete
** Changed in: flash-kernel (Ubuntu)
Status: Incomplete => Invalid
** Changed in: flash-kernel (Ubuntu Eoan)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1854347
Title:
Boot hang on Pi3B+ arm64 images with the latest boot.scr
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