From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mathieu Othacehe <m.othacehe@gmail.com>
Subject: Re: Merging =?utf-8?Q?=E2=80=98wip-newt-installer=E2=80=99?= in
	master?
Date: Sun, 13 Jan 2019 18:09:27 +0100
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: Guix-devel <guix-devel@gnu.org>


Hey,

>>       ERROR: pty: failed to exec child /gnu/store/=E2=80=A6-installer: O=
peration not permitted (exec_child() in src/pty.c:299)
>>
>>     in a loop and the VM became unusable.  Not sure what happened!
>
> Hmm at least I can reproduce this issue, not sure what's
> happening. This error does not happend when creating a disk-image and
> running qemu manually. I'll try to investigate it soon.

The problem seem to be related to cow-store on VM produced by guix
system vm. I can reproduce it on "master" by running:

guix system vm /gnu/system/install.scm and appending -drive
format=3Draw,file=3D/home/mathieu/vm-test.img to the produced script.

Then,

mount /dev/sda1 /mnt
herd start cow-store /mnt

-> Every command (like ls ou mount) fails because /gnu/store does not
seem to be reachable anymore.

Is this a known issue, or am I missing something?

Thanks,

Mathieu