[one-users] kvm bridge interface error

[Javier Fontan]

Hello,

What is the version you are using? In 2.0 by default it uses
qemu:///system url to talk to libvirt. If you are using 1.4 in the
configuration for kvm vmm, the file vmm_kvmrc it should be also
configured for qemu:///system, is that correct?

Also check that libvirtd is running as root, I suppose it is seeing
that the files are owned by root. This error usually happens when
virsh uses qemu:///session url to connect to it.

Bye


On Tue, Sep 28, 2010 at 1:28 PM, Olivier Sallou <olivier.sallou at irisa.fr> wrote:
>  Hi,
> I have an error at my VM boot:
>
> Tue Sep 28 13:07:09 2010 [VMM][D]: Message received: LOG - 8 error: internal
> error Failed to add tap interface 'vnet%d' to bridge 'br0' : Permission
> denied
>
> I use a bridge on my worker node and my template refer to this bridge. The
> bridge works (I have a manually installed VM that use it).
> I think the issue is when one tries a brctl on my bridge (using CentOS).
>
> I wonder what rights are required ? I could of course add oneadmin user to
> root group, but I do not think this is a good solution.
>
> I have set in libvirtd.conf:
> unix_sock_group = "oneadmin"
>
> and:
>
> [root at genomobyle network-scripts]# ls -la /var/run/libvirt
> total 20
> drwxr-xr-x  4 root root     4096 sep 28 13:05 .
> drwxr-xr-x 30 root root     4096 sep 28 13:05 ..
> srwxrwx---  1 root oneadmin    0 sep 28 13:05 libvirt-sock
> srwxrwxrwx  1 root oneadmin    0 sep 28 13:05 libvirt-sock-ro
> drwxr-xr-x  2 root root     4096 sep 16 09:51 network
> drwxr-xr-x  2 root root     4096 sep 24 14:47 qemu
>
>
> Thanks if you have any clue...
>
> Olivier
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>



-- 
Javier Fontan, Grid & Virtualization Technology Engineer/Researcher
DSA Research Group: http://dsa-research.org
Globus GridWay Metascheduler: http://www.GridWay.org
OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org