Re: [libvirt] How to get the real device in guest os after attached a disk?

I have a question as the subject above, the reason I want to know this is that, if I attach some disks on the guest, for example, I specified /dev/vdc&/dev/vdd(target device) at the cmd line by using 'virsh attach-disk', but they may be /dev/vdb&/dev/vdc in the guest os, so if the guest user want to detach the /dev/vdb(guest device), he\she will be confused with the two target devices /dev/vdb&/dev/vdc, because he\she doesn't know the corresponding relation of the guest device and target device, he\she may detach an error device /dev/vdd(target device) which corresponding to /dev/vdc(guest device). Could anyone give me some idea?