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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 15:32:58 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 15:32:58 -0400
commit5cb84ec742fd33f78c8022863fadaa8d0d93e176 (patch)
tree1a81ca3665e6153923e40db7b0d988f8573ab59c /static/netbsd/man4/man4.vax/mt.4
parenta59214f344567c037d5776879bcfc5fcc1d4d5f6 (diff)
feat: Added NetBSD man pages
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+.\" $NetBSD: mt.4,v 1.16 2017/08/01 11:11:37 wiz Exp $
+.\"
+.\" Copyright (c) 1980, 1991, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" from: @(#)mt.4 8.1 (Berkeley) 6/5/93
+.\"
+.Dd February 17, 2017
+.Dt MT 4 vax
+.Os
+.Sh NAME
+.Nm mt
+.Nd
+.Tn TM-78 Ns / Ns Tn TU-78
+.Tn MASSBUS
+mag tape interface
+.Sh SYNOPSIS
+.Cd "mt0 at mba? drive ? tape mu0 at mt0 slave 0"
+.Sh DESCRIPTION
+The
+.Tn TM-78 Ns / Ns Tn TU-78
+combination provides a standard tape drive
+interface as described in
+.Xr mtio 4 .
+Only 1600 and 6250
+.Tn BPI
+are supported; the
+.Tn TU-78
+runs at 125
+.Tn IPS
+and autoloads tapes.
+.Sh DIAGNOSTICS
+.Bl -diag
+.It mu%d: no write ring.
+An attempt was made to write on the tape drive
+when no write ring was present; this message is written on the terminal of
+the user who tried to access the tape.
+.It mu%d: not online.
+An attempt was made to access the tape while it
+was offline; this message is written on the terminal of the user
+who tried to access the tape.
+.It "mu%d: can't change density in mid-tape."
+An attempt was made to write
+on a tape at a different density than is already recorded on the tape.
+This message is written on the terminal of the user who tried to switch
+the density.
+.It "mu%d: hard error bn%d mbsr=%b er=%x ds=%b."
+A tape error occurred
+at block
+.Em bn ;
+the mt error register and drive status register are
+printed in octal with the bits symbolically decoded.
+Any error is
+fatal on non-raw tape; when possible the driver will have retried
+the operation which failed several times before reporting the error.
+.It mu%d: blank tape.
+An attempt was made to read a blank tape (a tape without even
+end-of-file marks).
+.It mu%d: offline.
+During an i/o operation the device was set offline.
+If a non-raw tape was used in the access it is closed.
+.El
+.Sh SEE ALSO
+.Xr mt 1 ,
+.Xr tar 1 ,
+.Xr mtio 4 ,
+.Xr vax/tm 4 ,
+.Xr vax/ts 4 ,
+.Xr vax/ut 4
+.Sh HISTORY
+The
+.Nm
+driver appeared in
+.Bx 4.1 .
+.Sh BUGS
+If a physical error (non-data) occurs,
+.Nm
+may hang ungracefully.
+.Pp
+Because 800
+.Tn BPI
+tapes are not supported, the numbering of minor devices
+is inconsistent with triple-density tape units.
+Unit 0 is drive 0, 1600
+.Tn BPI .