[Users] Starting VM Error

[Gianluca Cecchi]

On Sun, Sep 15, 2013 at 11:54 AM, Dan Kenigsberg wrote:

> Would you be kind to try starting a VM from virsh, where the VM image is
> out of ovirt's repor?
>
> I am asking you to have a VM image somewhere on your local disk, chown
> it to vdsm:kvm mode 0660, create a libvirt domxml for it (something
> simple, no spice or encryption), and try to start it up.
>
> Would this fail to start with the same permission issue, and the issue
> is again solved by `chown vdsm:qemu` ? If so, please copy libvir-list
> with your reply.
>
> Dan.

It seems it doesn't solve for me...
see below

[root at tekkaman ~]# saslpasswd2 -a libvirt virshuser

[root at tekkaman ~]# qemu-img create -f qcow2
/var/lib/libvirt/images/testvm.img 4G
Formatting '/var/lib/libvirt/images/testvm.img', fmt=qcow2
size=4294967296 encryption=off cluster_size=65536 lazy_refcounts=off

[root at tekkaman ~]# chown vdsm.kvm /var/lib/libvirt/images/testvm.img

[root at tekkaman ~]# chmod 0660 /var/lib/libvirt/images/testvm.img

[root at tekkaman ~]# virsh define /tmp/testvm2.xml
Please enter your authentication name: virshuser
Please enter your password:
Domain testvm2 defined from /tmp/testvm2.xml


[root at tekkaman ~]# ll /etc/libvirt/qemu
total 8
drwx------. 3 root root 4096 Aug  2 01:41 networks
-rw-------. 1 root root 2367 Sep 15 12:48 testvm2.xml

[root at tekkaman ~]# virsh start testvm2
Please enter your authentication name: virshuser
Please enter your password:
error: Failed to start domain testvm2
error: internal error Process exited while reading console log output:
char device redirected to /dev/pts/2
((null):19320): Spice-Warning **: reds.c:3247:reds_init_ssl: Could not
use private key file
qemu-kvm: failed to initialize spice server

[root at tekkaman ~]# ll /var/lib/libvirt/images/
total 136
-rw-rw----. 1 vdsm kvm 197120 Sep 15 12:24 testvm.img
[root at tekkaman ~]# chgrp qemu /var/lib/libvirt/images/testvm.img
[root at tekkaman ~]# ll /var/lib/libvirt/images/
total 136
-rw-rw----. 1 vdsm qemu 197120 Sep 15 12:24 testvm.img

[root at tekkaman ~]# virsh start testvm2
Please enter your authentication name: virshuser
Please enter your password:
error: Failed to start domain testvm2
error: internal error Process exited while reading console log output:
char device redirected to /dev/pts/2
((null):19434): Spice-Warning **: reds.c:3247:reds_init_ssl: Could not
use private key file
qemu-kvm: failed to initialize spice server

[root at tekkaman ~]# virsh list --all
Please enter your authentication name: virshuser
Please enter your password:
 Id    Name                           State
----------------------------------------------------
 -     testvm2                        shut off


In attach the generated testvm2.xml in /etc/libvirt/qemu.
The diff between it and the one used to define domain here:

[root at tekkaman ~]# diff /tmp/testvm2.xml /etc/libvirt/qemu/testvm2.xml
0a1,7
> <!--
> WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
> OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
>   virsh edit testvm2
> or other application using the libvirt API.
> -->
>
3,5c10,13
<   <memory>1048576</memory>
<   <currentMemory>1048576</currentMemory>
<   <vcpu>1</vcpu>
---
>   <uuid>91d6012b-043f-2ea0-fcf8-dfa4fcda5b62</uuid>
>   <memory unit='KiB'>1048576</memory>
>   <currentMemory unit='KiB'>1048576</currentMemory>
>   <vcpu placement='static'>1</vcpu>
32c40
<       <address type='drive' controller='0' bus='1' unit='0'/>
---
>       <address type='drive' controller='0' bus='1' target='0' unit='0'/>
39a48,50
>     <controller type='usb' index='0'>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
>     </controller>
50a62,65
>     <video>
>       <model type='cirrus' vram='9216' heads='1'/>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
>     </video>


Gianluca
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