GNU bug report logs - #27887
[PATCH] services: Add libvirt services

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Message #14 received at 27887 <at> debbugs.gnu.org (full text, mbox):

From: Ryan Moe <ryan.moe <at> gmail.com>
To: Christopher Baines <mail <at> cbaines.net>
Cc: 27887 <at> debbugs.gnu.org
Subject: Re: [bug#27887] [PATCH] services: Add libvirt services
Date: Fri, 18 Aug 2017 17:49:01 -0700

>> This looks pretty much ready to be merged to me. Later, I'll try
>> running this on my machine, just to check that it starts successfully.
>
> So, I've reconfigured my machine to run both services, and also
> configured libvirt to use libvirt for the socket group, so that I could
> add libvirt as a supplemental group for my user. I think this has all
> worked fine.
>
> I tried using the virt-manager to connect, but I'm getting the
> following error at the moment:
>
>
> Unable to connect to libvirt.
>
> internal error: Cannot find suitable emulator for x86_64
>
> Libvirt URI is: qemu:///system
>
> Traceback (most recent call last):
>   File
> "/gnu/store/h61dc28cck9lmp25d1r11d3hzzhz5qnj-virt-manager-1.4.2/share/virt-manager/virtManager/connection.py",
> line 1108, in _open_thread self._populate_initial_state() File
> "/gnu/store/h61dc28cck9lmp25d1r11d3hzzhz5qnj-virt-manager-1.4.2/share/virt-manager/virtManager/connection.py",
> line 1062, in _populate_initial_state logging.debug("conn version=%s",
> self._backend.conn_version()) File
> "/gnu/store/h61dc28cck9lmp25d1r11d3hzzhz5qnj-virt-manager-1.4.2/share/virt-manager/virtinst/connection.py",
> line 322, in conn_version self._conn_version =
> self._libvirtconn.getVersion() File
> "/gnu/store/a9g2s8404v8v5pm7m7w8yzr56ba1k331-python2-libvirt-3.4.0/lib/python2.7/site-packages/libvirt.py",
> line 3863, in getVersion if ret == -1: raise libvirtError
> ('virConnectGetVersion() failed', conn=self) libvirtError: internal
> error: Cannot find suitable emulator for x86_64


Hi Christopher,

Thank you for taking a look at this. I have been trying to track down
this issue for about a week now (I use virt-manager and libvirt daily
so I'm kind of bummed this stopped working). When I originally
submitted the patch it worked, I swear I wouldn't have submitted it
otherwise :)

At some point I ran a guix pull and a guix system reconfigure and it
stopped working. The only difference I see is that when I submitted
the patch libvirt 3.5.0 was the current version and now it's 3.6.0.
I'm not sure why that would have broken it though.

The error you see is what happens if you install libvirt without qemu.
As far as I can tell though qemu is installed. It's also weird because
it works if I execute the exact same command that shepherd does. You
can try it yourself:

1. Start shepherd service
2. ps aux | grep libvirtd
3. herd stop libvirtd
4. As root, run the complete command from 2 and test with virt-manager.

My initial thought was that it had something to do with how I was
installing two packages into the system profile. qemu and libvirt both
end up there so I don't see why it doesn't work though.

Thanks,
Ryan

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