I confirmed that if we compress the kernel (as Seth's patch does), the 5.0 kernel would boot fine on the HP m400[*]. I chatted w/ apw about this and we agreed that a respin isn't necessary because LP showed that there is no current linux-hwe-edge package in bionic, and therefore introducing one should not be a regression. ***But*** I now see that I gave him bad information. What I failed to recognize is that the linux-*meta*-hwe-edge package is already in bionic-updates - it just depends on binaries from the linux-hwe package at the moment. So, there could very well be users with the linux-image-generic-18.04-hwe-edge installed today (which currently depends on 4.18) that would get a broken update if they were to dist-upgrade to the new version that depends on the 5.0 kernel.
To be clear - the fix here is a respin of the linux-signed-hwe- edge/bionic package with the patch referenced in comment #3. This does not require a rebuild/recompile of the kernel, just a rebuild of the package that ingests pre-compiled/signed binaries. This would impact all signed architectures (x86, power & arm64). But, other than arm64's vmlinuz now being gzip'd, the resulting binaries landed should be verifiably bit-identical. [*] At least some of our cartridges. We have one at least one that is impacted by bug 1823753 as well, so it'll still be broken until the next SRU cycle. It is unclear what the difference is between these cartridges (silicon rev? fw?) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828553 Title: Unable to boot Bionic 5.0 linux-hwe-edge kernel on ARM64 Moonshot node To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1828553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
