Two different initrds after NFSROOT generation

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Date: Mon, 4 May 2026 16:03:57 +0200
From: Steffen Grunewald <[email protected]>
To: FAI mailing list <[email protected]>
Subject: Two different initrds after NFSROOT generation
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Hi,

while attempting to resolve a chicken-and-egg situation (*), I found that
nfsroot hooks have a side-effect:

If the initrd gets modified by hook action, it's not copied to the TFTP
directory.

This may be intentional though -?


Best, Steffen



Background -
(*) I've unearthed a 9-year old ARM64 server (Cavium Thunder X) which was
running Debian Buster, and refused to boot any newer kernel up to 5.11 in
Bullseye - so it couldn't be dist-upgraded and I had no time now power to
dig any deeper. Recently I found that 5.12 might have contained a helpful
fix... so any distro including/after Bookworm might have worked, but...
I couldn't even set up a FAI NFSROOT on the machine because at some point
zstd was chosen as the kernel compressor, the "Muenchhausen method" (pull
yourself out of the swamp by your own hair) also failed.
Running fai-setup on a RasPi 3B is a tedious task, but seems to succeed -
this is currently the only (arm-v8) machine I can set up with Trixie.


-- 
Steffen Grunewald, Cluster Administrator
Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
Am Mühlenberg 1 * D-14476 Potsdam-Golm * Germany
~~~
Fon: +49-331-567 7274
Mail: steffen.grunewald(at)aei.mpg.de
~~~

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