Re: Export archive and import it on another machine

[白い熊＠相撲道 <help-guix_gnu.org@sumou.com>]

On February 18, 2016 11:34:52 PM CET, Leo Famulari <leo@famulari.name> wrote:
>On Thu, Feb 18, 2016 at 08:01:44PM +0000, 白い熊＠相撲道 wrote:
>> I'm trying to export Libreoffice from one PC and import it on another
>one — the reason I'm doing this is that with the latest git checkout
>when I try to install it on a PC with a newly installed GuixSD it keeps
>building it from source and failing. 
>> 
>> Anyhow, on the machine that I have it installed I ran: 
>> 
>> # guix archive --generate-key
>> $ guix archive --export -r /gnu/store/hash...libreoffice-5.0.3.2 >
>libreoffice-5.0.3.2.nar 
>> 
>> Then copied the nar and /etc/guix/signing-key.pub to the other PC. 
>> 
>> There I ran: 
>> 
>> # guix archive --authorize < signing-key.pub
>> $ guix archive --import < libreoffice-5.0.3.2.nar
>> 
>> The last command fails with: 
>> 
>> guix archive: error: build failed: program `guix-authenticate' failed
>with exit code 1
>> 
>> What am I doing wrong? 
>
>Hm, I'm not sure. Are you sure the source machine's public key is in
>/etc/guix/acl?

I think it is — I see one entry in the acl file, but since it's a hash I don't know how to confirm that it represents the much shorter hash found in the source machine's signing-key.pub file. 

>> Side question — why is it building Libreoffice from source on “guix
>package -i libreoffice”? Recipe there, but not built on Hydra? How can
>I install an earlier already—built version? 
>
>Most likely for this reason:
>http://debbugs.gnu.org/cgi/bugreport.cgi?bug=22653
>
>You can install an earlier version by checking out a commit in the Guix
>git repo from before Vigra broke, and building based on that commit
>[0].

That's good — I can do that. I'm not really familiar with git yet — how can I determine the commit representing the point in time before Vitro broke and pull it? And how do I go back to master after rebuilding and installing libreoffice? 

>When building Guix from git, be sure to pass the correct value to
>./configure --localstatedir=. Most likely it is '/var'.

Thank you for reminding me of this! I would have forgotten for sure! :@) 
--
白い熊＠相撲道

>[0]
>https://www.gnu.org/software/guix/manual/guix.html#Building-from-Git