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From: terry@cs.weber.edu (A Wizard of Earth C)
Subject: Re: Adaptec 1542A
Message-ID: <1993Mar19.174022.28675@fcom.cc.utah.edu>
Sender: news@fcom.cc.utah.edu
Organization: Weber State University (Ogden, UT)
References: <1oa3npINN6mc@tantalus.csir.co.za>
Date: Fri, 19 Mar 93 17:40:22 GMT
Lines: 36
In article <1oa3npINN6mc@tantalus.csir.co.za> niel@marge.mikom.csir.co.za (Niel Viljoen) writes:
>-------
>Sorry because this has to be a FAQ!! I have not found anything about it in the FAQ though.
>
>DOES ANYBODY NOW WHETHER I CAN USE IT???????????
Yes, if you use Julian's SCSI drivers; no otherwise. Boot disks containing
his SCSI drivers are available for download from agate.berkeley.edu in the
unofficial directory.
Since the 1542A isn't config'ed in by default, I believe, you will have to
use a working system to build a kernel to use a drive with the controller,
ie: it must be bootstrapped using another drive.
This isn't really frequently asked, since 1542A's are very prevalent; you
get much, much better performance with 1542B's at very little additional
cost. The 1542A's don't support a number of commands used in the default
1542B driver; this makes them ridiculously slower and means the default
driver can't be used.
I believe the INSTALL.NOTES had a section on what controllers were usable,
wherein it listed the 1542B as the only SCSI controller the unpatched,
unmodified kernel could support.
Terry Lambert
terry@icarus.weber.edu
terry_lambert@novell.com
---
Any opinions in this posting are my own and not those of my present
or previous employers.
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