From mboxrd@z Thu Jan  1 00:00:00 1970
From: Danny Milosavljevic <dannym@scratchpost.org>
Subject: Re: Graphical Installer - Call for Testing.
Date: Wed, 12 Jul 2017 13:30:54 +0200
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To: Ludovic =?ISO-8859-1?Q?Court=E8s?= <ludo@gnu.org>
Cc: guix-devel@gnu.org, John Darrington <john@darrington.wattle.id.au>

Hi Ludo,

> Yes.  At the REPL, you can do:
> 
>   ,use(guix)
>   ,run-in-store (system-disk-image installation-os)

I tried:

,use (gnu system vm)
,use (gnu system install)
,use (guix)
,run-in-store (system-disk-image installation-os)
(derivation->output-path $3)

and get

$3 = #<derivation /gnu/store/wqba6wghk3j9jk1sxqb4a2lv730jpcmp-disk-image.drv => /gnu/store/pjrkpnz4bgpiqgdix8ldz0psp53zr4kr-disk-image b0bbe60>
$5 = "/gnu/store/pjrkpnz4bgpiqgdix8ldz0psp53zr4kr-disk-image"

But /gnu/store/pjrkpnz4bgpiqgdix8ldz0psp53zr4kr-disk-image doesn't exist yet.

What should I do to make guix build the image?

Also, what do you think of us providing a "guix system" command for this?

It's kinda difficult to use otherwise...