bug#27605: Lightweight desktop example fails to build with kernel panic

[ludo@gnu.org (Ludovic Courtès)]

Leo Famulari <leo@famulari.name> skribis:

> On Fri, Jul 07, 2017 at 08:53:37AM -0400, Leo Famulari wrote:
>> On Fri, Jul 07, 2017 at 02:23:05PM +0200, Ludovic Courtès wrote:
>> > Did you pass --image-size?  If not, it could be that the image size
>> > estimate is slightly too small (see commit
>> > a8ac4f081a9a679498ea42ccfe001f218bba3043).
>> > 
>> > The build log should contain something like:
>> > 
>> >   creating ~a image of ~,2f MiB...
>> > 
>> > where ~a is “raw” or “qcow2” depending on the “guix system” command you
>> > used.
>> > 
>> > Could you check what happens if you pass a --image-size argument bigger
>> > than that?
>> 
>> I doubled it from ~10 GiB to ~20 GiB:
>> 
>> > creating qcow2 image of 19359.59 MiB...
>> 
>> This example template uses EFI, which I'm not that familiar with. But I
>> suspect something about the bootloader or filesystems configuration is
>> wrong.
>
> Actually, false alarm! After increasing the image size to 20 GiB, I
> missed the messages about being out of space. Sorry for the noise!

So the problem is that the estimate was too small, right?

It would be awesome if you could fiddle with the heuristics in there to
see what would work.  :-)

Thanks,
Ludo’.