Re: ISO image available for testing!

[Ludovic Courtès]

Hi Chris,

Christopher Baines <address@hidden> skribis:

> I've attempted to use this to install GuixSD on a Bytemark
> VM. Unfortunately I haven't succeeded yet. I managed to get as far as
> running guix system init, but when I did, it started downloading the
> bootstrap binaries, and then building binutils.
>
> When I run guix system build, or guix build with the --dry-run options,
> it says that it will download, rather than building, but it doesn't.

It turned out to be issues related to grafts and to what Hydra builds,
fixed with these commits:

3e442f85f * gnu: ghostscript-with-cups: Turn into a public variable.
91c9b5d01 * packages: 'package-grafts' trims native inputs.
ff0e0041f * packages: 'fold-bag-dependencies' honors nativeness in recursive 
calls.
f00b85ff8 * gnu: commencement: Do not graft early bootstrap packages.

The Binutils issue is fixed by f00b85ff8.

Commit 91c9b5d01 notably fixes the “expat issue”: coreutils had expat in
its dependency graph, via gettext.  Thus, the expat graft was picked up
as a candidate graft.  However, expat itself was subject to the glibc
graft, and since there was no substitute for this particular expat, we’d
have to build it first, just to throw it away later on because coreutils
does not refer to it at run time.

Long story short: we were flagging native inputs as potential sources of
grafts even though, by definition, native inputs are not referred to at
run time.

The last commit ensures that Hydra builds the replacement for
‘ghostscript-with-cups’.

What’s tricky is that one doesn’t notice these issues unless starting
from a fresh store.

I’ve uploaded an updated ISO image, which I used to test substitute
availability and grafts.  If you have time in the coming hours, feedback
welcome:

  
http://web.fdn.fr/~lcourtes/software/guix/guixsd-install-0.13.0.91c9b5d01.x86_64-linux.iso.xz
  
http://web.fdn.fr/~lcourtes/software/guix/guixsd-install-0.13.0.91c9b5d01.x86_64-linux.iso.xz.sig

Ludo’.