Alex Kost <alez...@gmail.com> skribis:
> Hello, I have Guix installed on a 32-bit "ArchLinux", and I use the
> following command to “deploy” a 64-bit GuixSD:
>
> $ guix system init --no-grub --system=x86_64-linux my-os-config.scm /mnt/guix
>
> However, eventually it fails with the following output:
>
> ...
> downloading `/gnu/store/qf803k3npvn8632vssc4g3zp0s5klghv-modprobe' from
> `http://hydra.gnu.org/nar/qf803k3npvn8632vssc4g3zp0s5klghv-modprobe' (0.0 MiB
> installed)...
> http://hydra.gnu.org/nar/qf803k3npvn8632vssc4g3zp0s5klghv-modprobe 0.5
> KiB transferredkilling process 18626
> guix system: error: build failed: a `x86_64-linux' is required to build
> `/gnu/store/zckxg5v0pdxb22kyl6jrzawj1wwrfjby-locale.drv', but I am a
> `i686-linux'
It works as long as there are substitutes available, but some
derivations are not substitutable, as you noticed, and since an i686
host cannot run x86_64 code, you get this error.
> So I'm wondering is there a way to init a 64-bit system from a 32-bit
> one or perhaps it's just not possible?
It actually is possible, but a little bit trickier. Mark did it a few
weeks ago, though in a slightly different context. The following should
work:
1. Install an i686 GuixSD, simply with ‘guix system init’, but use an
x86_64 kernel. To do that, you need to explicitly ask for an
x86_64 kernel and Guix (so that the daemon accepts to build x86_64
things) in the OS config:
(define linux-libre-x86_64
(package (inherit linux-libre)
(arguments `(#:system "x86_64-linux"
,@(package-arguments linux-libre)))))
(define guix-x86_64
(package (inherit guix)
(arguments `(#:system "x86_64-linux"
,@(package-arguments guix)))))
(define %my-services
;; Make sure the ‘guix-daemon’ services uses ‘guix-x86_64’.
(map (lambda (mservice)
(mlet %store-monad ((service mservice))
(if (memq 'guix-daemon (service-provision service))
(guix-daemon #:guix guix-x86_64)
(return service))))
%base-services))
(operating-system
;; ...
(kernel linux-libre-x86_64)
(services %my-services))
Normally you’ll get the x86_64 kernel and Guix from hydra.gnu.org,
so no problem. The rest of the user-land will still be 32-bit.
2. Boot into the new system, and from there run ‘guix system
reconfigure’ with a cleaned up OS config.
Let us know how it goes!
Ludo’.
