On Tue, Nov 9, 2010 at 3:36 PM, Prasad Joshi <P.G.Joshi@xxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > I am trying to run KVM machine from the image created as COW from the original image. But it not working. > > Screenshot that shows the KVM works with the original image > > [root@prasad images]# qemu-kvm /var/lib/libvirt/images/Ubuntu.img -m 512 > ^Z > [1]+ Stopped qemu-kvm /var/lib/libvirt/images/Ubuntu.img -m 512 > [root@prasad images]# bg > [1]+ qemu-kvm /var/lib/libvirt/images/Ubuntu.img -m 512 & > [root@prasad images]# pwd > /var/lib/libvirt/images > [root@prasad images]# lsmod | grep -i kvm > kvm_intel 42122 3 > kvm 257132 1 kvm_intel > > 1. Created COW copy of the image after stoping the VM that was running > > [root@prasad images]# pwd > /var/lib/libvirt/images > > [root@prasad images]# qemu-img create -b Ubuntu.img -f qcow /home/prasad/Virtual/Ubuntu_copy.ovl > > 2. Trying to run VM using the copy created > > [prasad@prasad Virtual]$ ls -l > total 36 > -rw-r--r--. 1 root root 32832 Nov 9 15:33 Ubuntu_copy.ovl Why is Ubuntu.img not visible in the ls output? Ubuntu.img is a relative path to the backing file. It looks like QEMU will not be able to open the backing file. Also, is there a reason you're using qcow and not qcow2? Stefan -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
