On Sun, Jan 02, 2022 at 08:48:12PM +0100, Ulrich Teichert wrote: > but I simply fail to understand why it tries to unzip a gzipped kernel. The compressed kernel needs to start with 0x1f8b or 0x1f9e, else you'll get the "unknown compression method" error: https://github.com/wgwoods/aboot/blob/master/zip/misc.c#L131 Use "hexdump -C" on the compressed kernel image to double check that it starts with the proper magic bytes. > I hope I'm not too annoying, Not at all. But I've never owned an Alpha, so am totally unfamiliar with its boot process. Thanks, Lukas