Subject: Re: root on sd10a - what??
To: der Mouse <mouse@Collatz.McRCIM.McGill.EDU>
From: Jason Thorpe <>
List: port-sun3
Date: 12/21/1995 11:02:52
On Thu, 21 Dec 1995 13:07:48 -0500 
 der Mouse <mouse@Collatz.McRCIM.McGill.EDU> wrote:

 > But, why is the kernel paying any attention to what the PROM thinks?
 > The PROM just passes in the boot device in the sd(0,28,0) form, right?
 > So the kernel knows the boot device is ID 5 LUN 0, so it should use
 > whichever disk is ID 5 LUN 0.  This seems relatively straightforward.
 > Or is doing this what thorpej is talking about when saying

Yah, basically.  The trick, of course, is to get all 
controller/target/lun possibilities right :-)  The challenge in the sparc 
port was getting it right on all versions of the PROM (both sun4-style 
and OpenPROM-style) in the same kernel :-)

Jason R. Thorpe                             
NASA Ames Research Center                               Home: 408.866.1912
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