Here is the command [root@test2 images]# virsh attach-disk 1 /var/lib/libvirt/images/disk.qcow2 vdb --driver file --subdriver qcow2 Disk attached successfully
Here is the log I found relevant (too much under debug mode) 15:31:52.902: debug : virEventInterruptLocked:668 : Interrupting 15:31:52.902: debug : qemuMonitorCommandWithHandler:235 : Receive command reply ret=0 errno=0 30 bytes 'unknown command: 'drive_add'^M ' 15:31:52.902: debug : virEventRunOnce:595 : Poll got 1 event 15:31:52.902: debug : virEventDispatchTimeouts:405 : Dispatch 3 15:31:52.902: debug : qemuMonitorAddDevice:1878 : mon=0x7f3628341370 device=virtio-blk-pci,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1 15:31:52.902: debug : virEventDispatchHandles:450 : Dispatch 8 15:31:52.902: debug : qemuMonitorCommandWithHandler:230 : Send command 'device_add virtio-blk-pci,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1' for write with FD -1 Than you very much. Shi On Thu, Mar 3, 2011 at 10:12 PM, Wen Congyang <[email protected]> wrote: > At 03/04/2011 01:00 PM, Shi Jin Write: > >> > >> > >> > >> <disk type='file' device='disk'> > >> <driver name='qemu' type='qcow2' cache='none'/> > >> <source file='/var/lib/libvirt/images/rhel6rc_64.img'/> > >> <target dev='hda' bus='ide'/> > >> <alias name='ide0-0-0'/> > >> <address type='drive' controller='0' bus='0' unit='0'/> > >> </disk> > >> <disk type='file' device='cdrom'> > >> <driver name='qemu' type='raw'/> > >> <source file='/var/lib/libvirt/images/test.iso'/> > >> <target dev='hdc' bus='ide'/> > >> <readonly/> > >> <alias name='ide0-1-0'/> > >> <address type='drive' controller='0' bus='1' unit='0'/> > >> </disk> > >> <disk type='file' device='disk'> > >> <driver name='file' type='qcow2'/> > >> <source file='/var/lib/libvirt/images/test3.img'/> > >> <target dev='vdb' bus='virtio'/> > >> <alias name='virtio-disk1'/> > >> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > >> function='0x0'/> > >> </disk> > >> <controller type='ide' index='0'> > >> <alias name='ide0'/> > >> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' > >> function='0x1'/> > >> </controller> > >> > >> > >> Thank you very much. It is exactly the same output as mine, particularly > > <driver name='file' type='qcow2'/> > > I thought it has to be name='qemu' to detach properly but since you > didn't > > have a problem, I am very lost on why mine didn't work. > > > > My libvirtd.log shows (with debugging turned on) > > 14:43:18.965: debug : qemuMonitorCommandWithHandler:235 : Receive command > > reply ret=0 errno=0 33 bytes 'Device 'virtio-disk1' not found^M > > ' > > 14:43:18.965: debug : virEventDispatchTimeouts:405 : Dispatch 3 > > 14:43:18.965: debug : virEventDispatchHandles:450 : Dispatch 8 > > 14:43:18.965: error : qemuMonitorTextDelDevice:2314 : operation failed: > > detaching virtio-disk1 device failed: Device 'virtio-disk1' not found^M > > > > Do you know what the "device not found" error means? > > It seems attaching virtio-disk1 failed. > Can you provide the log when you attach virtio-disk1? > > Thanks. > Wen Congyang > > > > > Thanks. > > > > Shi > > > > -- Shi Jin, Ph.D.
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