mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-22 13:45:38 +00:00
fbf5fc0fb2
By adding a link to an explanation in the kbase. Signed-off-by: Martin Kletzander <mkletzan@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
59 lines
1.7 KiB
ReStructuredText
59 lines
1.7 KiB
ReStructuredText
========================================
|
|
Libvirt does not work after installation
|
|
========================================
|
|
|
|
.. contents::
|
|
|
|
TL;DR
|
|
=====
|
|
|
|
Most probably you want to start a virtqemud socket:
|
|
|
|
::
|
|
|
|
# systemctl start virtqemud.socket
|
|
|
|
If you are unsure whether to do this, please read the rest of this document.
|
|
|
|
Symptom
|
|
=======
|
|
|
|
After installing libvirt or a virt tool that uses libvirt, commands do
|
|
not work when run as root:
|
|
|
|
::
|
|
|
|
# virsh list
|
|
error: failed to connect to the hypervisor
|
|
error: Operation not supported: Cannot use direct socket mode if no URI is set.
|
|
For more information see https://libvirt.org/kbase/failed_connection_after_install.html
|
|
|
|
Root cause
|
|
==========
|
|
|
|
Distribution guidelines and/or configurations may discourage or prohibit
|
|
starting services as part of a package installation. And because libvirt cannot
|
|
know where you might want to connect it cannot start it on its own.
|
|
|
|
Solution
|
|
========
|
|
|
|
After installing libvirt you may need to start a particular libvirt daemon on
|
|
the local machine, set a (default) URI to connect to or, alternatively,
|
|
rebooting the machine might work.
|
|
|
|
If you are trying to connect to a remote libvirt daemon you need to specify a `connection URI <../uri.html>`__.
|
|
|
|
If you are trying to control a local hypervisor, then the solution depends on various factors. You should know:
|
|
|
|
- what hypervisor driver you want to connect to, whether it is ``virtqemud`` for QEMU, ``virtchd`` for Cloud Hypervisor, etc. and
|
|
- how to start a service or socket (in case of systemd) on you system.
|
|
|
|
Example of the most common solution, trying to use QEMU/KVM on Linux with systemd as an init system, is:
|
|
|
|
::
|
|
|
|
# systemctl start virtqemud.socket
|
|
|
|
also provided on the top of the page.
|