Re: [ovirt-users] [OT] Major and minor numbers assigned to /dev/vdx virtio devices

[Nir Soffer]

On Wed, Jul 1, 2020 at 5:55 PM Gianluca Cecchi
<gianluca.cecchi@gmail.com> wrote:
>
> Hello,
> isn't there an official major/minor numbering scheme for virtio disks?
> Sometimes I see 251 major or 252 or so... what is the udev assignment logic?
> Reading here:
> https://www.kernel.org/doc/Documentation/admin-guide/devices.txt
>
>  240-254 block LOCAL/EXPERIMENTAL USE
> Allocated for local/experimental use.  For devices not
> assigned official numbers, these ranges should be
> used in order to avoid conflicting with future assignments.
>
> it seems they are in the range of experimental ones, while for example Xen 
> /dev/xvdx devices have their own static assignment (202 major)

This question belongs to qemu-discuss.

Also added some people that may help.

Nir