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Date: Sun, 17 Sep 2023 20:26:38 +0100
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Subject: Re: 3.18.3 standard OK on Steam Deck, but not extended
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From: rptb1+alpine@pobox.com
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On 2023-09-17 19:35, rptb1+alpine@pobox.com wrote:
> I was able to make an extended installation indirectly using libvirt, ...
...
> 1. How can I disable whatever "extended" has that is causing this, so 
> that the installation is usable.  I don't need graphics for what I'm doing.

I realised that these two statements are linked, and that setup-disk 
does not do what I was expecting.  setup-disk does not create a generic 
system, but one specialised to the system it is currently running on. 
You can see this at 
https://gitlab.alpinelinux.org/alpine/alpine-conf/-/blob/80370671291376ee040e5e25c0ea38a9c0780f2a/setup-disk.in#L500-509 
, where the script uses the current contents of /sys to filter packages.

I used a Libvirt/QEMU/KVM VM to get around the problem booting the ISO, 
but that created a system only containing firmware for that VM, and not 
the Steam Deck.

So, I was able to get the system back up in the VM then do::

   apk add linux-firmware-amdgpu

then reboot it native, and it came up.

There is probably other missing firmware, but I can see how to fix it 
for myself.

That leaves two problems:

1. Why does the extended ISO not boot?  (I'll try to find out.)

2. How to build an Alpine that boots anywhere?  I can see how to do it 
by modifying setup-disk, but maybe there should be a way to tell 
setup-disk to do that.

Thanks!