Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!seismo!rutgers!mcnc!ecsvax!dcw
From: dcw@ecsvax.UUCP (Douglas C. Wilson)
Newsgroups: comp.unix.wizards
Subject: How to add partition table under ULTRIX 2.0
Message-ID: <3653@ecsvax.UUCP>
Date: Wed, 5-Aug-87 14:58:33 EDT
Article-I.D.: ecsvax.3653
Posted: Wed Aug  5 14:58:33 1987
Date-Received: Sat, 8-Aug-87 04:42:55 EDT
Organization: UNC Educational Computing Service
Lines: 31
Keywords: ultrix,partition


	We have just brought up ULTRIX 2.0 on a Vaxstation II. There
has been a change made in the way MSCP devices are identified by the
uda driver.  In ULTRIX 1.2 partition tables were easily added to the 
driver by inserting the appropriate data into "struct size" in
/sys/data/uda_data.c and then inserting the last two digits of the MSCP
device identifier into the structure radfpt[].  For example for the
RD54 drive the line in radfpt looked like:
		54,	rd54_sizes,	/* RD54 disk drive */
I added a line for an Iomega Bernoulli drive on an Emulex SCSI
controller 	10,	im10_sizes,	/* IM10 disk drive */
This worked great for 1.2.

In version 2.0 the radfpt[] structure has been changed to include
further info for identification of the device.
		0x25644036,	rd54_sizes, ...
I have figured out the last 5 hex digits from comparing the drives listed.
	44= ascii "D" for the rD drive
	036 = 54 since it is a "54" drive
What are the first 3 digits, 256.  They are different for a number of
the drives listed in the table.  A number of choices for my
IM10 drive fail to allow the driver to identify the drive.  

HELP!!

Douglas C. Wilson	dcw@ecsvax
Dept. of Chemistry	University of NC	Chapel Hill, NC  27514
-- 

	Douglas C. Wilson	dcw@ecsvax
	Dept. of Chemistry	University of NC	Chapel Hill, NC  27514