On 11/09/2011 10:34 AM, Xu He Jie wrote:
于 2011年11月09日 07:08, Eric Blake 写道:
On 11/08/2011 12:16 AM, Xu He Jie wrote:
As the description of removing CDROM media from http://wiki.libvirt.org/page/QEMUSwitchToLibvirt#eject_DEV
Hmm. virsh attach-disk --type cdrom --mode readonly myguest "" hdc might look a bit nicer as: virsh attach-disk --type cdrom --mode readonly myguest --target hdc except that we marked --source as a required argument, so we have to provide something even when there is no real source. So I agree that we need your patch at a bare minimum to support this documented command line for adding a cdrom drive without a disk. Is there any other method of removing media from cdrom? I try with: detach-disk myguest hdc
This will detach the CD drive from guest, for just removing the media, "update-device $domain xml" with the source path removed in the xml will work. We planned to add some new virsh commands such as "insert-media", "eject-media" before to do the work, as "update-device" is not quite visiable, and question like this are frequent in upstream, but unfortunately, it's not implemented yet.
It told me: 'unsupported configuration: device type 'disk' cannot be detached'
Is this the exact error you saw, it's weried if a device of type disk can't be detached. The error expected should be something like: "unsupported configuration: device type of 'cdrom' cannot be detached" Regards Osier