GRUB is responsible for loading the initrd into memory, so it is possible that this is a GRUB regression. Also, this message is new to me: EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDIA_GUID device path So maybe this is related to a new GRUB initrd loading method?
To test that, I grabbed focal's grubnetaa64.efi[*] and retested. This actually worked, and contains no "LINUX_EFI_INITRD_MEDIA_GUID" messages in the stub: EFI stub: Booting Linux Kernel... EFI stub: Using DTB from configuration table EFI stub: Exiting boot services... [ 0.000000] Booting Linux on physical CPU 0x0000120000 [0x413fd0c1] So, adding a grub task. [*] http://ports.ubuntu.com/ubuntu-ports/dists/focal/main/uefi/grub2-arm64/2.04-1ubuntu26/grubnetaa64.efi.signed ** Attachment added: "howzit-iso-console+focal-grub.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1967562/+attachment/5578349/+files/howzit-iso-console+focal-grub.log ** Also affects: grub2-unsigned (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1967562 Title: jammy beta (220330) arm iso pxe boot kernel panic on Ampere Mt. Jade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-unsigned/+bug/1967562/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs