Ausam/doc/man/man8/msboot.8

Find at most related files.
including files from this version of Unix. 
.th MSBOOT VIII 3/13/78
.sh NAME
msboot \*- boot from msc 1100 controller
.sh FUNCTION
The \fImsboot\fR bootstrap program is  used for booting
UNIX systems from Ampex DM9100 drives with a
Microcomputer Systems controller. It will boot the
file `/unix' from a file system at a selectable cylinder
offset.
.sh OPERATION
Start the DEC M9301-YC hardware bootstrap by
.br
.in +7
.nf
.ul
SW CONTENTS	OPERATION
 165000		Load address
 000040		Start
.sp
.fi
.in -7
The bootstrap program will be loaded and will commence running.
It will wait until the value in the switch register is changed
before continuing.
If the value is increased, for example to 52 or 173030, then a
default file system, currently at cylinder 0326, will be searched
for the file 'unix' and it will be loaded and executed.
.s3
A decreased value, for example 0, will cause a `?' to be typed on
the console terminal, which can then be used to type in an alternative
program for booting. The name should be given as a pathname
starting from the root directory of the file system being booted.
Before typing return put the cylinder number of the file system in
the switch register. Now place a suitable value in the switch register
(52 or 173030) and hit return again. A further `?' indicates that
the name could not be found and the procedure should be repeated.
.sh FILES
/usr/source/mdec/msboot.s	bootstrap program
/usr/mdec/msboot		likewise but assembled
.sh BUGS
none