[Bug 1805668] Re: Building armhf and arm64 Raspberry Pi 3 images
Adam Smith
1805668 at bugs.launchpad.net
Fri Dec 7 13:21:48 UTC 2018
That should of read bug 1806813 !
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https://bugs.launchpad.net/bugs/1805668
Title:
Building armhf and arm64 Raspberry Pi 3 images
Status in livecd-rootfs package in Ubuntu:
Fix Released
Status in raspi3-firmware package in Ubuntu:
Fix Released
Status in u-boot package in Ubuntu:
Fix Released
Status in livecd-rootfs source package in Bionic:
Fix Committed
Status in raspi3-firmware source package in Bionic:
Confirmed
Status in u-boot source package in Bionic:
Confirmed
Status in livecd-rootfs source package in Cosmic:
Won't Fix
Status in raspi3-firmware source package in Cosmic:
Confirmed
Status in u-boot source package in Cosmic:
Confirmed
Bug description:
[Impact]
One of our long-term goals is to support the same set of platforms for both classical Ubuntu and ubuntu-core. We currently provide official images for the Raspberry Pi 3 for both the core16 and core18 bases but do not provide the same for Ubuntu classic.
Since it's a 'feature' we're essentially lacking since long, we want to have the new device also supported in our current LTS (bionic).
[Fix]
For the classic raspi3 support we will be using the ubuntu-image classic image building tool which is specifically designed for creating preinstalled images. The support for that has already been SRUed in the latest ubuntu-image.
For the full image build support to be complete, the following list of changes need to be backported (SRUed) into the respective stable series:
* livecd-rootfs - all the changes regarding classic image build, gadget tree selection and raspi3 rootfs generation.
* u-boot - bionic will need to be updated to at least 2018.03+dfsg1-2ubuntu2.
* raspi3-firmware (bionic only) - needs to be updated to at least the version we have in cosmic. Without this change, the console is flooded with firmware error messages every 2 seconds.
(vorlon) this should be updated specifically to the version of raspi3-firmware that we are using in the gadget snap - currently 1.20180919 - and not to another.
[Test Case]
* Run a bionic livefs build of raspi3+armhf with proposed enabled (IMAGEFORMAT=ubuntu-image and PROJECT=ubuntu-cpc), make sure the build succeeds and that the resulting image boots on a raspi3.
* Run a bionic livefs build of raspi3+arm64 with proposed enabled (IMAGEFORMAT=ubuntu-image and PROJECT=ubuntu-cpc), make sure the build succeeds and that the resulting image boots on a raspi3.
* Make sure that none of the other bionic daily images fail to build
[Regression Potential]
There is some potential that an invalid backport of livecd-rootfs
functionality could result in the inability to create new ubuntu-core
images or any of the other existing flavors. But in case of such a
regression we would see it instantly after the package lands in
bionic-proposed as we are building daily images with -proposed
enabled. As for the other packages, there probably is some regression
potential, but since the versions are backports from disco/cosmic, the
risk is probably very small.
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