> The rpi flavour doesn't have those constraints, though. What would be > the benefit of booting it in UEFI mode?
Thank you for paying your attention! I considered extending autopkgtest-virt-qemu to armel (and other archs) testbeds at https://salsa.debian.org/ci-team/autopkgtest/-/merge_requests/100#note_205984 To boot a qemu disk image by qemu-system-*, a booting firmware seems indispensable, as the autopkgtest maintainer does not like giving -kernel=something qemu option as https://salsa.debian.org/ci-team/autopkgtest/-/merge_requests/97#note_205357 A booting firmware for an armel Debian disk image seems only the qemu-efi-arm Debian package (is there anything else??). So I resorted to the UEFI booting. Currently I proposes to use linux-image-armmp-lpae for armel testbed. Best regards, Ryutaroh