Re: [Qemu-devel][PATCH] Qemu image over raw devices

[Shahar Frank <sfrank@redhat.com>]

Kevin, Daniel,

What do you think is the right thing to do here?

Option one:

1. I can suggest a new extension mechanism for QCOW2 (it can be even 
backwards compatible) and store the backing file format there
2. I can add a flag to qemu-img create to force backing file format 
(that is stored in the above extension).

Or:

Option two:

I can register qcow2 as a protocol and allow users to explicitly force 
qcow2 image logic.
It is true that the ":" notation is still used, but as this notation is 
still required even for the drive option (vvfat, for example) it won't 
be the first to introduce it to the system.

I have a feeling you both prefer option one ;-)

Shahar