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Re: chardev: opening backend "file" failed: Permission denied

 

Ahhh a "bug" in the documentation?
http://docs.openstack.org/trunk/openstack-compute/admin/content/configuring-migrations.html


On Fri, Jun 21, 2013 at 2:14 PM, Daniel P. Berrange <berrange@xxxxxxxxxx>wrote:

> On Fri, Jun 21, 2013 at 01:57:44PM -0400, Samuel Winchenbach wrote:
> > Here is some more information.  I am using Ubuntu 12.04 LTS, I have
> turned
> > off apparmor.
> >
> > Here is my mount: dedup:/big_pool/os-grizzly on /os-grizzly type nfs
> > (rw,noatime,nolock,tcp,bg,intr,hard,addr=10.54.90.10)
> >
> > root@test1:/# find /os-grizzly -type d | xargs ls -l -d
> > drwxr-xr-x 4 root   root   4 Jun 21 13:39 /os-grizzly
> > drwxr-xr-x 3 glance glance 3 Jun  3 10:25 /os-grizzly/glance
> > drwxr-x--- 2 glance glance 4 Jun 19 15:41 /os-grizzly/glance/images
> > drwxr-xr-x 3 nova   nova   3 Jun 21 13:39 /os-grizzly/nova
> > drwxr-xr-x 4 nova   nova   5 Jun 21 13:13 /os-grizzly/nova/instances
> > drwxr-xr-x 2 nova   nova   4 Jun 19 15:42
> /os-grizzly/nova/instances/_base
> > drwxr-xr-x 2 nova   nova   6 Jun 19 15:42
> /os-grizzly/nova/instances/locks
> >
> > root@test1:/# grep -RE "^[^#]" /etc/libvirt/*.conf
> > /etc/libvirt/libvirtd.conf:listen_tls = 0
> > /etc/libvirt/libvirtd.conf:listen_tcp = 1
> > /etc/libvirt/libvirtd.conf:unix_sock_group = "libvirtd"
> > /etc/libvirt/libvirtd.conf:unix_sock_rw_perms = "0770"
> > /etc/libvirt/libvirtd.conf:auth_unix_ro = "none"
> > /etc/libvirt/libvirtd.conf:auth_unix_rw = "none"
> > /etc/libvirt/libvirtd.conf:auth_tcp = "none"
> > /etc/libvirt/qemu.conf:dynamic_ownership = 0
> >
> >
> > I am stumped.  It was working fine before I made the changed
> > (dynamic_ownership, listen_tls, listen_tcp, auth_tcp) and started up the
> > other compute nodes.  :/
>
> Do not set 'dynamic_ownership' to 0. If you do this, you are required
> to have a mgmt app which knows how to set ownership on all resources
> used by QEMU. That option was added as a special hack for oVirt which
> can do that, but OpenStack does not support this.
>
> Daniel
> --
> |: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/:|
> |: http://libvirt.org              -o-             http://virt-manager.org:|
> |: http://autobuild.org       -o-         http://search.cpan.org/~danberr/:|
> |: http://entangle-photo.org       -o-       http://live.gnome.org/gtk-vnc:|
>

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