misc/121461: SATA Hard disks are not detected on SiS 180/181 RAID Controller

[Jaco le Roux]

>Number:         121461
>Category:       misc
>Synopsis:       SATA Hard disks are not detected on SiS 180/181 RAID Controller
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Mar 07 10:10:00 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Jaco le Roux
>Release:        7.0-RELEASE
>Organization:
Private
>Environment:
Cannot install FreeBSD due to the problem experienced.
>Description:
After loading FreeBSD's 7.0 i386 install CD and entering 'sysinstall', a Standard Install does not detect any hard disks. Both hard disks in my machine is SATA, and I believe the problem does not occur with PATA disks (even though I do not have one to test). The SATA hard drives run off a SiS 180/181 RAID Controller (even though they are not in RAID mode, and there is no ATA support in the BIOS) which is part of the Asus P4S-800D series. During boot time, I can see the device being loaded/probed.

A similar ticket has been opened in the past: kern/87585, however I was not around then to test it.
>How-To-Repeat:
Simply insert any 6.3 or 7.0 FreeBSD install disk into a machine with only SATA hard drives. Load into sysinstall and do a standard install.
>Fix:
There are a few references, one of them is a ticket opened in the past: kern/87585

A similar problem cropped into NetBSD, one (possible) solution was:
http://archive.netbsd.se/?ml=netbsd-tech-kern&a=2004-11&m=494701

>Release-Note:
>Audit-Trail:
>Unformatted: