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--- kvm [2012/04/14 14:13]
stojan
+++ kvm [2012/04/14 14:25] (current)
stojan
@@ Line 2: / Line 2: @@
 **
 Creating VMs from Debian repositories**
+How to create a new VM with 2GB of memory and 15GB disk image directly from Debian repo:
 <code>
 virt-install -n vmserver -r 2048 --os-type=linux --os-variant=debiansqueeze \
---disk /backups/vmserver.raw,device=disk,bus=virtio,size=15,sparse=true,format=raw -w bridge=br0,model=virtio \
+--disk /vmdisk/vmserver.raw,device=disk,bus=virtio,size=15,sparse=true,format=raw -w bridge=br0,model=virtio \
 --vnc --noautoconsole --location  http://cdn.debian.net/debian/dists/stable/main/installer-amd64/
 </code>
+use VNC to connect to the VM console after creating it.
+**Some useful commands for handling VMs**
+List existing VMs:
+<code>
+virsh list
+</code>
+Shutdown an existing VM:
+<code>
+virsh shutdown vmname
+</code>
+Destroy (hard shutdown) an existing VM:
+<code>
+virsh destroy vmname
+</code>
+Start an existing VM:
+<code>
+virsh start vmname
+</code>
+Set the 'autostart' flag on the existing VM:
+<code>
+virsh autostart vmname
+</code>
+Clone an existing VM. Make sure you update the udev settings after cloning if you want your network to work:
+<code>
+virt-clone -o OldVM -n NewVM -f /disk/NewVmImage.img
+</code>
+Remove a VM from the system 'registry':
+<code>
+virsh undefine vmname
+</code>
+**KVM performance boost**
 [[http://www.linux-kvm.com/content/get-performance-boost-backing-your-kvm-guest-hugetlbfs|Get a performance boost by backing your KVM guest with hugetlbfs]]