Switch from legacy ata(4) to CAM-based ATA

[Bruce Cran]

On Thu, 21 Apr 2011 00:17:44 +0300
Alexander Motin <mav at FreeBSD.org> wrote:

> 2 Bruce: Looking on XEN sources, it seems that the only place how it
> differs missing and present disk is the device signature. ata(4) at
> this moment doesn't checks signature if it is not ATAPI and READY bit
> is set. Attached patch should solve the problem by using more strict
> check, and I only hope it won't break anything else. Try it please.

That seems to have fixed it. Thanks!

-- 
Bruce Cran