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From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: Graphical Installer - Call for Testing.
Date: Fri, 07 Jul 2017 13:37:14 +0200
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To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: guix-devel@gnu.org, John Darrington <john@darrington.wattle.id.au>

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> Hydra does (system-disk-image installation-os
>                                           #:disk-image-size
>                                           (* 1024 MiB))))).
>
> Try doing the same in the Guile interpreter, like so:
>
> guile -L .
> ,use (gnu system vm)
> ,use (gnu system install)
> (system-disk-image installation-os #:disk-image-size (* 1024 MiB)))))

BTW, the default value of #:disk-image-size is now 'guess, and, if
everything goes well, it should compute a correct estimate of the image
size.  So I=E2=80=99d encourage you to rely on it (and to adjust the heuris=
tics
of the estimate turns out to be wrong :-)).

> But I think that's a monadic value and one would still call run-with-stor=
e with some store and the result?

Yes.  At the REPL, you can do:

  ,use(guix)
  ,run-in-store (system-disk-image installation-os)

HTH!

Ludo=E2=80=99.