Re: [Qemu-devel] Re: [PATCH] Add serial number support for virtio_blk

[Daniel P. Berrange]

On Mon, Jun 22, 2009 at 11:38:51PM +0300, Gleb Natapov wrote:
> On Mon, Jun 22, 2009 at 03:28:40PM -0500, Anthony Liguori wrote:
> > Gleb Natapov wrote:
> >> On Mon, Jun 22, 2009 at 02:05:12PM -0500, Anthony Liguori wrote:
> >>   
> >>> I also noticed that if=scsi,serial=XXX doesn't seem to do anything useful.
> >>>
> >>>     
> >> What makes you think so?
> >>   
> >
> > It doesn't seem to change /dev/disk/by-id/PATH
> >
> I thought you mean that there is no way to get it from guest hence the
> question. I don't know what Linux uses for /dev/disk/by-id/PATH, but
> Windows retrieve disk serial using the scsi command that QEMU
> implements.

It is done by udev rules, which call out to a 'scsi_id' command. On a 
Fedora 11 host /lib/udev/rules.d/60-persistent-storage.rules

Regards,
Daniel
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