virsh add iso image like this:
virsh edit some_vm
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/var/lib/libvirt/images/systemrescuecd-6.0.2.iso'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
virsh autostart srv_name
Domain srv_name marked as autostarted
virsh # change-media c6 hdc /var/lib/libvirt/iso/CentOS-6.4-x86_64-minimal.iso –insert
domblklist c6
You need for this:
ps aux | grep guset_name | grep mac arp -an
You should edit your guest xml and leave only one graphics device setting, like:
<graphics type=’vnc’ port=’5900′ autoport=’no’/>
qemu-monitor-command centos –hmp change vnc :5
If you did default Centos OS installation, you may be missing console access from virsh virtual machine administration.
If you have started VM from virsh like this:
start –console VM and you see only:
Connected to domain VM_NAME
Escape character is ^]
you should change your VM default configuration like this:
vi /etc/init/ttyS0.conf
# ttyS0 – agetty
#
# This script starts a agetty on ttyS0
stop on runlevel [S016]
start on runlevel [23]
respawn
exec agetty -h -L -w /dev/ttyS0 115200 vt102
and finish initctl start ttyS0
you also can change a bit you grub.conf file a bit:
grubby –update-kernel=ALL –args=’console=ttyS0,115200n8 console=tty0′
if you will add this kernel commands, you will see kernel messages when your system is booting, but its not necessary.
If you can access console as root user you should add this:
echo “ttyS0” >> /etc/securetty
If you already have running virtual machine, you should use libvirt tools to manage your virtual instances.
virsh list
Id Name State
—————————————————-
2 Fedora19 running
Ok. Good its running.
virsh dumpxml Fedora19 > ./Fedora19.xml
Done.