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

 

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
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