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From: James Raynard <fqueries@jraynard.demon.co.uk>
Message-Id: <199608080041.AAA05416@jraynard.demon.co.uk>
Subject: Re: 2.1.5-RELEASE generic kernel panics looking for mythical sd1a root
To: Gabor Zahemszky <zgabor@code.hu>
Date: Thu, 8 Aug 1996 00:41:22 +0000 ()
Cc: questions@freebsd.org
In-Reply-To: <199608071201.MAA00898@CoDe.CoDe.hu> from "Gabor Zahemszky" at Aug 7, 96 12:01:51 pm
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> > > 	1:sd(0,a)kernel
> 
> Well, another question, from another person:
> what does the 1: means?  (On my 2.1R machine's man 8 boot, there isn't anything
> about it, only controller(unit,part)/filename.)

It's a very recent change that (I think) just managed to squeeze into
2.1.5.

The '1' refers to the second drive detected by the BIOS (the BIOS detects
IDE disks before SCSI, and hackers always count from 0 :-)

For the benefit of anyone who's not familiar with the rest of it, 'sd'
means SCSI drive, '0' signifies the first such drive, 'a' means, well
that's a bit of a historical artefact, and '/kernel' (which should have
a slash in front of it) is the name of the kernel to be booted.