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Re: Merging ‘wip-newt-installer’ in master?

From: Ludovic Courtès
Subject: Re: Merging ‘wip-newt-installer’ in master?
Date: Sun, 13 Jan 2019 22:13:37 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)


Mathieu Othacehe <address@hidden> skribis:

>>>       ERROR: pty: failed to exec child /gnu/store/…-installer: Operation 
>>> 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=raw,file=/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.

Oh indeed.  I think that’s because / is already an overlayfs in ‘guix
system vm’, so somehow we can’t just stack another overlayfs there.

I should test in a standalone image produced by ‘guix system vm-image’

Sorry for the confusion!


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