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Autor: Ralph Ronnquist
Fecha:  
A: dng
Asunto: Re: [DNG] [rrq@mail.rrq.id.au: Re: Devuan armhf / armel for my Samsung / Google Chromebook model XE303C12 "Snow" ?]
On Wed, Jun 21, 2023 at 02:45:28PM +0200, Didier Kryn wrote:
> Le 21/06/2023 à 14:27, Ralph Ronnquist a écrit :
> > (I messed up and sent a direct reply :()
> >
> > ----- Forwarded message from Ralph Ronnquist <rrq@???> -----
> >
> > Date: Wed, 21 Jun 2023 22:25:54 +1000
> > From: Ralph Ronnquist <rrq@???>
> > To: Didier Kryn <kryn@???>
> > Subject: Re: [DNG] Devuan armhf / armel for my Samsung / Google Chromebook
> >     model XE303C12 "Snow" ?
> > Message-ID: <ZJLsUNhj9sZ4GlT2@localhost>

> >
> > On Wed, Jun 21, 2023 at 02:09:53PM +0200, Didier Kryn wrote:
> > > Le 21/06/2023 à 12:13, Ralph Ronnquist a écrit :
> > > > It also works fine using "multiarch" (in which case the architecture
> > > > transition is seamless). I.e., set up your system to have armhf
> > > > (and/or armel) as additional "foreign" architecture(s) and then a
> > > > plain debootstrap will be fine.
> > >     multiarch makes sense for i386 and x86-64 (amd64) and for powerpc 32 and
> > > 64, because the cpus are able to execute instructions of both arches. I
> > > would be extermely surprised if it worked for amd64 and armhf.
> > Yes it did surprise me too :) Works fine for my amd6 laptop; a bit
> > slow, but that's no different from a "proper" qemu VM. (The multiarch
> > approach is basically the same as running a foreign qemu-static within
> > a foreign filesystem). But "seamless"; doesn;t need chroot.
> >
> > Ralph.
> >
> >
>     Yes, an amd64 can run i386 instructions (by design) and a ppc64 can run
> ppc32 instructions, also by design. I dunno if there are multiarch
> capibilities within arm architectures, but you can certainly not mix a
> random combination of architectures, like amd64 and armhf. Hence the need
> for qemu.


Note that I have:
% dpkg --print-architecture
amd64
% dpkg --print-foreign-architectures
i386
arm64
armhf
armel
ppc64el

and I have used them all and it has been very useful for preparing
filesystems and compiling kernel(s) for arm on my amd64 laptop; I've
done that for all three variants as well as for ppc64el.

Ralph.

>
> --     Didier
>
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