Hi, Gao Feng I've tried what you said, but still exists the problem: ubuntu@lxc:~$ vir attach-disk instance-0000002c /dev/dm-0 sdb error: Failed to attach disk error: Unable to create device /proc/10366/root/dev/sdb: Permission denied I think finding what it means by saying 'Unable to create device /proc/10366/root/dev/sdb: Permission denied' is the key. But anyway, thanks for your help! >On 07/15/2013 04:01 PM, hzguanqiang wrote: >> Hi Daniel, >> >> I noticed that the patch "Add support for hotplug/unplug of disk devices in LXC" you wrote had been merged into libvirt of version 1.0.2. >> But when I used this function, it report an error with details as following: >> >> ubuntu@lxc:~$ vir attach-device instance-0000002c disk.xml --config >> error: Failed to attach device from disk.xml >> error: Unable to create device /proc/18377/root/dev/sdb: Permission denied >> >> ubuntu@lxc:~$ vir attach-device instance-0000002c disk.xml >> error: Failed to attach device from disk.xml >> error: Unable to create device /proc/18377/root/dev/sdb: Permission denied >> >> ubuntu@lxc:~$ cat disk.xml >> <disk type='block' device='disk'> >> <driver type='raw' cache='none'/> >> <source dev='/dev/dm-0'/> >> <target dev='sdb' bus='scsi'/> >> </disk> >> > >You should use attach-disk not attach-device. > >vir attach-disk instance-0000002c /dev/dm-0 sdb _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
