From a772c9b111d33641c9172fd45d46eefa6e314cec Mon Sep 17 00:00:00 2001 From: CSRG Date: Wed, 27 Jul 1983 22:23:53 -0800 Subject: [PATCH] BSD 4_2 development Work on file usr/man/man4/mt.4 Synthesized-from: CSRG/cd1/4.2 --- usr/man/man4/mt.4 | 52 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 usr/man/man4/mt.4 diff --git a/usr/man/man4/mt.4 b/usr/man/man4/mt.4 new file mode 100644 index 0000000000..67b1ec208e --- /dev/null +++ b/usr/man/man4/mt.4 @@ -0,0 +1,52 @@ +.TH MT 4 "27 July 1983" +.UC 4 +.SH NAME +mt \- TM78/TU-78 MASSBUS magtape interface +.SH SYNOPSIS +.B master mt0 at mba? drive ? +.br +.B tape mu0 at mt0 slave 0 +.SH DESCRIPTION +The tm78/tu-78 combination provides a standard tape drive +interface as described in +.IR mtio (4). +Only 1600 and 6250 bpi are supported; the +TU-78 runs at 125 ips and autoloads tapes. +.SH "SEE ALSO" +mt(1), +tar(1), +tp(1), +mtio(4), +tm(4), +ts(4), +ut(4) +.SH DIAGNOSTICS +\fBmu%d: no write ring\fR. 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. +.PP +\fBmu%d: not online\fR. 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. +.PP +\fBmu%d: can't switch density in mid-tape\fR. 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. +.PP +\fBmu%d: hard error bn%d mbsr=%b er=%x ds=%b\fR. A tape error occurred +at block \fIbn\fR; 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. +.PP +\fBmu%d: blank tape\fP. +An attempt was made to read a blank tape (a tape without even +end-of-file marks). +.PP +\fBmu%d: offline\fP. +During an i/o operation the device was set offline. If a +non-raw tape was used in the access it is closed. +.SH BUGS +If any non-data error is encountered on non-raw tape, +it refuses to do anything more until closed. -- 2.20.1