On 02/06/2012 02:59 PM, Gabriel L. Somlo wrote: > One host is my desktop, the other is a remote machine. I don't > share any storage between the two hosts, so I worked out that I > need '--copy-storage-all'. > > My current command line is > > virsh -c qemu:///system migrate --live --copy-storage-all \ > my_test_vm qemu+ssh://root@xxxxxxxxxxxxxxxxxxxxxxx/system > > The error message I get is: > > error: Unable to allow access for disk path > /var/lib/libvirt/images/my_test_vm.img: No such file or directory That means that on the destination, you have to pre-create /var/lib/libvirt/images/my_test_vm.img prior to calling the virsh migrate command. Yes, libvirt should be taught how to make --copy-storage-all nicer to use, and pre-create files on users behalf, but no one has submitted a patch for that so far. > > (regardless if I use '--live' or not, BTW). > > I also tried migrating while connected both locally and to the remote > host from virt-manager, but > > 1. I couldn't find any way to specify or select the equivalent > of '--copy-storage-all' Alas, you'll find that --copy-storage-all isn't very widely tested, and virt-manager does not support it yet (patches welcome, though). > > and > > 2. I keep getting a similar error after I click 'migrate': > > Unable to migrate guest: Unable to allow access for disk path > /var/lib/libvirt/images/my_test_vm.img: No such file or directory Without --copy-storage-all (which is what virt-manager is doing), then you have to have shared storage between the two hosts before you can attempt a migration. -- Eric Blake eblake@xxxxxxxxxx +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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