RT11 sysgen and disk partitions
pete at dunnington.u-net.com
Mon Mar 7 18:49:56 CST 2005
On Mar 7 2005, 15:32, Vintage Computer Festival wrote:
> On Mon, 7 Mar 2005, Adrian Graham wrote:
> > Isn't that something to do with using DUX.SYS instead of DU.SYS or
> > getting confused with RT11XM and something like RT11SJ? It's been
16 or 17
> > years since I last sysgenned an RT11 box :-\
> What's the difference between RT11XM and RT11SJ? What do the last
> letter signify?
SJ is the Single Job monitor, which allows you to run one thing at a
time from the console.
FB is the Foreground/Background monitor, which allows you to run a
background task as well.
XM is the eXtended Monitor, which is like FB but in addition allows the
use of more than 56kB memory (by paging). Device drivers for XM have a
three-letter filename, with the third letter always being 'X'.
BL is the BaseLine monitor, which is what is on the distribution media.
It's like SJ, but includes all the devices you're likely to want to
boot from (so you can do a SYSGEN and transfer your customised monitor
to your preferred boot medium) and excludes all the frilly bits you
might want but aren't needed for a SYSGEN.
Pete Peter Turnbull
University of York
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