From mboxrd@z Thu Jan 1 00:00:00 1970 From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) Subject: Re: Initializing a 64bit system using guix on a 32bit OS Date: Fri, 22 May 2015 15:28:24 +0200 Message-ID: <87bnhclp1j.fsf@gnu.org> References: <87siappuix.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:42795) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yvn01-00025c-0i for guix-devel@gnu.org; Fri, 22 May 2015 09:28:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Yvn00-0002We-1L for guix-devel@gnu.org; Fri, 22 May 2015 09:28:28 -0400 Received: from fencepost.gnu.org ([208.118.235.10]:43890) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Yvmzz-0002Wa-Uu for guix-devel@gnu.org; Fri, 22 May 2015 09:28:27 -0400 In-Reply-To: <87siappuix.fsf@gmail.com> (Alex Kost's message of "Thu, 21 May 2015 23:04:06 +0300") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org To: Alex Kost Cc: guix-devel@gnu.org Alex Kost skribis: > Hello, I have Guix installed on a 32-bit "ArchLinux", and I use the > following command to =E2=80=9Cdeploy=E2=80=9D a 64-bit GuixSD: > > $ guix system init --no-grub --system=3Dx86_64-linux my-os-config.scm /mn= t/guix > > However, eventually it fails with the following output: > > ... > downloading `/gnu/store/qf803k3npvn8632vssc4g3zp0s5klghv-modprobe' from `= http://hydra.gnu.org/nar/qf803k3npvn8632vssc4g3zp0s5klghv-modprobe' (0.0 Mi= B 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-l= inux' 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 =E2=80=98guix system init=E2=80=99= , 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 =E2=80=98guix-daemon=E2=80=99 services uses =E2= =80=98guix-x86_64=E2=80=99. (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=E2=80=99ll 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 =E2=80=98guix system reconfigure=E2=80=99 with a cleaned up OS config. Let us know how it goes! Ludo=E2=80=99.