Open Stack

Hi,

When someone calls nova volume-attach or the block-device-mapping 
parameter at boot, it is possible to specify a device name for the 
guest. However I couldn't find any guest OS which would honor this. E.g. 
with libvirt/kvm, if the guest has two virtio disks already (vda and 
vdb), specifying vdf would be ignored and the disk will be attached as 
vdc in the guest.
I propose to deprecate this option and at boot where it is not optional 
to accept only auto as an option.

Best regards,

Geza