8:11 p.m.
Here is what I got.
root ubuntu:/home/john# virsh start ubuntu2
error: Failed to start domain ubuntu2
error: internal error Process exited while reading console log output: char device
redirected to /dev/pts/1
bind(unix:/var/lib/libvirt/qemu/ubuntu2.libguestfs): Permission denied
chardev: opening backend "socket" failed: Permission denied
root ubuntu:/home/john# ll /var/lib/libvirt/qemu/
total 20
drwxr-x--- 5 libvirt-qemu kvm 4096 Jul 5 14:44 ./
drwxr-xr-x 8 root root 4096 May 20 04:18 ../
drwxr-xr-x 2 libvirt-qemu kvm 4096 May 20 04:18 dump/
drwxr-xr-x 2 libvirt-qemu kvm 4096 May 20 04:18 save/
drwxr-xr-x 2 libvirt-qemu kvm 4096 May 20 04:18 snapshot/
root ubuntu:/home/john# cat /etc/libvirt/qemu/ubuntu2.xml
<!--
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 ubuntu2
or other application using the libvirt API.
-->
<domain type='kvm' xmlns:qemu='/schemas/domain/qemu/1.0'>
<qemu:commandline>
<qemu:arg value='-s'/>
</qemu:commandline>
<name>ubuntu2</name>
<uuid>03f4c36d-9509-05dd-167d-d2613d1dd883</uuid>
<memory>1024000</memory>
<currentMemory>1024000</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='x86_64' machine='pc-1.0'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/home/john/ubuntu-1204-vm.img'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0'
unit='0'/>
</disk>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01' function='0x1'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:d4:7d:07'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<sound model='ich6'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</sound>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x05' function='0x0'/>
</memballoon>
<channel type='unix'>
<source mode='bind' path='/var/lib/libvirt/qemu/ubuntu2.libguestfs'
/>
<target type='virtio' name='org.libguestfs.channel.0' />
</channel>
</devices>
</domain>
When I deleted the <channel>...</channel> part, it will start normally. But I
need it to use guestfish with --live option.
No SELinux or AppArmor is used. qemu.conf shows it's running by root user. I did
"virsh start" operation under root and the error remains. Should I change the
permission attributes of files under /var/lib/libvirt/qemu ?