so this is indeed not an issue with the modules but with the kernel itself and the support for sas, uas or the enclosure services.
i test-built all tags from https://git.launchpad.net/~ubuntu- kernel/ubuntu/+source/linux-raspi/+git/focal/refs/tags from 1023.26 going backwards and found that it reliably works until Ubuntu- raspi-5.4.0-1013.13 and reliably hangs with Ubuntu-raspi-5.4.0-1014.14 so somewhere between these two tags the breakage was introduced ... i have now also tried to boot either of the 20.10 images (desktop, server, UC18) and they all expose the same behavior -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1881623 Title: USB support missing in initrd makes booting core with writable on USB impossible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1881623/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
