Attached is a patch for curtin that works for me, though it could use some cleanup. It installs flash-kernel in the same place GRUB gets installed for EFI-based systems, which seems like the appropriate place. Before installint it, it diverts /usr/sbin/flash-kernel so that flash- kernel's postinst doesn't try (and fail) to flash a kernel that isn't yet installed. There's existing code in enable_update_initramfs() that will undo this diversion. I suspect we should refactor disable_update_initramfs() somehow instead of duplicating this code like I've done here.
I've tested this w/ a locally-hacked squash image that has flash-kernel purged and a PPA kernel that allows grub-efi-arm64 to satisfy the bootloader Recommends. On an EFI-based system, flash-kernel never gets installed. On a Moonshot m400, flash-kernel gets installed as expected. Once curtin has been updated with a fix like this, and MAAS has been refreshed to include it, I think we should then be able to remove flash- kernel from the arm64 cloud images. ** Patch added: "curtin.patch" https://bugs.launchpad.net/ubuntu/+source/curtin/+bug/1918427/+attachment/5476956/+files/curtin.patch ** Changed in: curtin (Ubuntu) Status: New => Confirmed ** Changed in: cloud-images Status: Incomplete => Confirmed ** Changed in: curtin (Ubuntu) Status: Confirmed => Triaged ** Changed in: curtin (Ubuntu) Status: Triaged => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1918427 Title: curtin: install flash-kernel in arm64 UEFI unexpected To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/1918427/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
