Observations on Ultrix 2.2
George Robbins
grr at cbmvax.UUCP
Wed Apr 6 08:24:02 AEST 1988
This stuff really didn't seem to fit in with my Ultrix 2.2 installation
notes message so I broke it out...
Observations:
1) It's kind of amusing that Ultrix now includes a copy of the CI780
Microcode in the mdec directory, no? Funny, the CI not supported
warning message doesn't show up when you do a strings /vmunix...
Anybody know what the 'efs' device driver mentioned in /sys/conf/files
is for?
2) Can anyone provide an description of the stuff in /usr/lib/lpd/lpdfilters?
Some is obvious, and I guess most is varian/versatec stuff, although
I didn't load any of the raster printer stuff.
Sure would be nice if DEC would supply the source for a generic filter
that you would customize to suit. There are one or two tricks that
make it slightly obvious how to write a filter and the information on
output filter specifications in the supplementary documentation is
incomplete.
3) The "m4" sendmail.cf sources have popped up in /usr/src/usr.lib/...
but there's nothing there that isn't in the generic sendmail.cf.
4) Anybody know what "support" is provided for the "RRD50" "Read Only
Optical Disk Unit"?
5) Interesting how little is said about the "Assymetric Multiprocessor
Support" -- I guess you're just supposed to load the software on
your 8800, put "processors 2" in the config file and not worry about
the details, huh?
6) The following amusing stuff shows up if you do a "strings -2 /etc/mount".
unknown ufs ods brfs msdos nfs dfs sysv
Can you say "unix file system, vms file system, bell remote file system,
ms-dos, network file system, ???, system V file system"? It would be
interesting if it all comes to pass. The general idea is if you say
mount -t xxx, mount tries to exec xxx_mount to do the dirty work. So
far only ufs_mount and nfs_mount seem to be present...
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