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From: vernon@ssi400.uucp
Newsgroups: comp.sys.ncr
Subject: Re: NCR Tower - PC File exchange
Message-ID: <203@texbell.swbt.com>
Date: 20 Feb 90 15:14:00 GMT
Lines: 80
Resender: towers@texbell.swbt.com (NCR Tower Mailing List)

In H.L.Rodgers reply to Dario Alcocer
friday>In article <5531@nucleus.mi.org> dar@nucleus.mi.org (Dario Alcocer) writes:
friday>>Does anyone know how to transfer files between an NCR Tower machine
friday>>running Unix and IBM PC-DOS file?  I noticed that the Tower has
friday>>a 5-1/4" floppy drive, but the only way I can write to it is via
friday>>cpio redirected to /dev/fd0.  After I do this, though, I can't read the disk
friday>>on MS-DOS.
friday>>
friday>>Any suggestions?
friday>
friday>There is a script called /usr/bin/pcnodes that will built device nodes
friday>for the drive to operate as a PC-compatible drive with 256 byte sectors.
friday>'pcnodes' builds device nodes for devices having 40 or 80 tracks,
friday>single or double-sided, and 8 or 9 sectors per track (2**3, or 8, nodes
friday>in all).
friday>
friday>By the way, I believe this works only for the "MSC" controller, not 
friday>for SCSI...I could be wrong.
friday>-- 
friday>--
friday>HL Rogers    (hl.rogers@ncrcae.Columbia.NCR.COM)
friday>Me?  Speak for my company??  HA!
friday>"Call 202/653-1800 for a good time!" - John Matrow, 1989

H.L. Rogers is correct about the pcnodes script only working for "MSC"
controllers.  The major and minor numbers are different for the "SCSI"
controllers.  If  you have the "SCSI" controller  however, you can use
the following script  or modify your existing  script substituting the
correct major and minor device numbers.

:#  Seay Systems, Inc. - Vernon E. Hurdle
:# Shellscript to make device nodes for pcdsk on systems with SCCI controllers
:#
:
:echo "Making device nodes for pcdsk"
:if [ ! -d /dev/pcdsk ] 
:then
:	echo "Creating directory '/dev/pcdsk' to contain device nodes"
:	mkdir	/dev/pcdsk
:	chmod	755 /dev/pcdsk
:fi
:
:echo "Raw PC -- 40 tracks, 1 side, 8 sectors per track ...  /dev/pcdsk/h1s8"
:/etc/mknod /dev/pcdsk/h1s8 b 12 232
:chmod	666 /dev/pcdsk/h1s8
:
:echo "Raw PC -- 40 tracks, 1 side, 9 sectors per track ...  /dev/pcdsk/h1s9"
:/etc/mknod /dev/pcdsk/h1s9 b 12 236
:chmod	666 /dev/pcdsk/h1s9
:
:echo "Raw PC -- 40 tracks, 2 sides, 8 sectors per track ...  /dev/pcdsk/h2s8"
:/etc/mknod /dev/pcdsk/h2s8 b 12 200
:chmod	666 /dev/pcdsk/h2s8
:
:echo "Raw PC -- 40 tracks, 2 sides, 9 sectors per track ...  /dev/pcdsk/h2s9"
:/etc/mknod /dev/pcdsk/h2s9 b 12 204
:chmod	666 /dev/pcdsk/h2s9
:
:
:echo "Raw PC -- 80 tracks, 1 side, 8 sectors per track ...  /dev/pcdsk/t80h1s8"
:/etc/mknod /dev/pcdsk/t80h1s8 b 12 224
:chmod	666 /dev/pcdsk/t80h1s8
:
:echo "Raw PC -- 80 tracks, 1 side, 9 sectors per track ...  /dev/pcdsk/t80h1s9"
:/etc/mknod /dev/pcdsk/t80h1s9 b 12 228
:chmod	666 /dev/pcdsk/t80h1s9
:
:echo "Raw PC -- 80 tracks, 2 sides, 8 sectors per track ...  /dev/pcdsk/t80h2s8"
:/etc/mknod /dev/pcdsk/t80h2s8 b 12 192
:chmod	666 /dev/pcdsk/t80h2s8
:
:echo "Raw PC -- 80 tracks, 2 sides, 9 sectors per track ...  /dev/pcdsk/t80h2s9"
:/etc/mknod /dev/pcdsk/t80h2s9 b 12 196
:chmod	666 /dev/pcdsk/t80h2s9
:
:ls -ls /dev/pcdsk/*

############################################################
# Vernon E. Hurdle (vernon@ssi400.lonestar.org)            #
############################################################