Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uwm.edu!rpi!crdgw1!ge-dab!tarpit!sdgsun!paul
From: paul@sdgsun.UUCP (Paul Emerson)
Newsgroups: comp.unix.i386
Subject: SCSI Tape on 386ix
Keywords: SCSI, aha1540, 386ix
Message-ID: <391@sdgsun.UUCP>
Date: 7 Mar 90 19:44:12 GMT
Organization: SDG Division of SAIC ComSystems, Winter Park, FL
Lines: 39



Thanks to all who responded on my backup configuration question.
OK, so now I have an Archive Viper 2150s and an Adaptec 1542 controller.
For my hard disk I am using a WD1007-WA2 with two 170MB drives.  So I
am only using the 1542 for the tape.  I have disable the floppy port on the 
1542, and have all the jumpers at the default.  Trying to configure the 
kernel for this arrangement drove me nuts, but I did get it to build.  
I selected the HPDD option and selected  

Regular ESDI primary controller. (IRQ 14) 
No secondary.
SCSI controller, with tape.     (IRQ 11)

The manuals, say that "aha1540, " must be included in mdevices.  
The current line in mdevices is: 

aha1540 -       iHo             aha_    0       0       0       2       -1

I also added the entries for tape_init() in gendev/space.c and tape/space.c

The kernel builds. But no nodes in /dev.  According to the tape(7) man
page, the devices should be /dev/ct and /dev/nrct.  It goes on to explain
the the minor numbering scheme.  So I did a "makenod ct 41 3". But this
doesn't work.  Looking at /etc/conf/tmp/conf.c  is see that "tape" is 
device major 28 (mdevices says 41), while aha1540 is 63 
(which I had to kludge just to make the kernel build included it's 
driver code).  If I let kconfig do it aha1540 and dsk conflict on 0. 


Any clues?  Am I missing a release note(s)?

Paul

-- 
Paul J. Emerson                           Software Design Group, Inc.  
Senior Technical Manager                  450 Lakemont Ave.
UUCP:{ucf-cs|tarpit}!sdgsun!paul          Winter Park, FL 32792
CIS: 72355,171                            (407) 657-1300