Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!unmvax!aplcen!haven!mimsy!tove.umd.edu!steveg
From: steveg@tove.umd.edu (Steve Green)
Newsgroups: comp.unix.aux
Subject: Re: Apple 40Meg Tape Drive for AUX
Keywords: Tape, Drive, AUX
Message-ID: <18692@mimsy.UUCP>
Date: 23 Jul 89 22:21:54 GMT
References: <4690@advsln.UUCP]  <1989Jul23.150405.4175@radar.uucp]
Sender: nobody@mimsy.UUCP
Reply-To: steveg@tove.umd.edu.UUCP (Steve Green)
Organization: U of Maryland, Dept. of Computer Science,
Lines: 34

In article <1989Jul23.150405.4175@radar.uucp]  donn@radar.uucp (Donn S. Fishbein) writes:
] root@advsln.UUCP (root) writes:
] ] ...and performed a mknod /dev/rmt/tc1 b 9 0 and mknod /dev/rmt/tc1n b 9 0 to
] ] create the appropriate special files (tape is on SCSI id 1).
] 
] ] The problem is that : (1) I guessed at the minor number, though I thought 0
] ] seems reasonable and (2) tar, cpio etc can not open the device.
] 
] ] I also set the owner and group on the special files to bin.
] 
] ] Can someone shed some light on my problem and how 
] ] does one go about formatting the tapes (diskformat does not seem to be
] ] the right utility).
] 
] Here's a couple of lines from my /dev/rmt:
] crw-rw-rw-   1 root     sys        9,  0 Jul  2 12:29 tc0
] crw-rw-rw-   1 root     sys        9,  8 Jul  2 12:29 tc0n
] crw-rw-rw-   1 root     sys        9,  1 Jul  2 12:29 tc1
] crw-rw-rw-   1 root     sys        9,  9 Jul  2 12:29 tc1n
] ..(The minor number is the SCSI ID, or +8 for the tcXn device)
] 
] As far as formatting tapes, the only thing I've been able to figure
] out is to use Tape Backup 40SC under MacOS.

Well, I just used newunix tc and then autoconfig and it did it all for me. I
used
	autoconfig -I -o /unix -S /etc/startup -M /etc/master

As fas as formatting, you can use mt(1).  
	mt -f/dev/rmt/tc? format

PS: dont forget to re-kconfig. 8-(

					-steveg@tove.umd.edu