From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lukas Wunner <lukas@wunner.de>
Subject: Re: Booting newer kernels on the Jensen...update
Date: Mon, 3 Jan 2022 04:38:33 +0100
Message-ID: <20220103033833.GA8637@wunner.de>
References: <202201021948.202JmC7h015740@valdese.nms.ulrich-teichert.org>
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To: Ulrich Teichert <krypton@ulrich-teichert.org>
Cc: Linux Alpha <linux-alpha@vger.kernel.org>, John Paul Adrian Glaubitz <glaubitz@debian.org>

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