home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.unix.xenix.sco
- Path: sparky!uunet!rde!ksmith!keith
- From: keith@ksmith.uucp (Keith Smith)
- Subject: Re: Xenix considered harmful (was Re: SCO support - a success story)
- Organization: Keith's Computer, Hope Mills, NC
- Date: Sat, 12 Sep 92 05:31:17 GMT
- Message-ID: <1992Sep12.053117.4299@ksmith.uucp>
- References: <9209061050.AA05570@dynamix.com> <Bu6Bpp.AG8@mudos.ann-arbor.mi.us>
- Lines: 125
-
- In article <Bu6Bpp.AG8@mudos.ann-arbor.mi.us> mju@mudos.ann-arbor.mi.us (Marc Unangst) writes:
- >In article <9209061050.AA05570@dynamix.com> david@dynamix.com (David L Jarvis) writes:
- >>How about all those segmentation violations that arose from the 286 not
- >>having hardware memory protection?
- >
- >Well, we're picking nits here, but I can't resist. During most of my
- >experience with Xenix/286, you'd get a machine lockup more frequently
- >than you'd get a segvio. Segvios were more frequently caused by
- >a large-model program that tried to assume pointers and ints were the
- >same size.
-
- Hmm, During my experience with over 20 Xenix-286 sites running apps
- from Uniplex Office Automation, to Open Systems accounting to Point of
- Sale over the last 5 years I can't recall 1 system lock-up. Of course
- they were all running "shrink wrap" applications on standard hardware.
-
- >
- >>Why haven't you forced this client and others like them to switch to Unix?
- >>WOW!!! Could it be that ... perhaps ... they don't NEED Unix???!!!
- >>You said it yourself Marc, Xenix serves their needs just fine, and THATS
- >>what we've all been saying right along ...
- >
- >Well, we haven't switched them to Unix because they don't have the
- >money and because there was really no need. However, they very
- >narrowly averted the need quite recently: Their 2400bps modem broke,
- >and they were thinking about getting a V.32 or V.32bis modem to
- >replace it. Good thing they decided to go with another 2400bps modem,
- >because I doubt their 286/10 running Xenix/286 would have been able to
- >keep up with a V.32 or V.32bis modem.
-
- Well, Jeezuz, Throw in a 286/20 with the modem. $100 tops. Actually a
- 286/10 will run a V.32 modem fine at 9600 baud. Of course my question
- is this: If the 2400 baud modem was adequate why would they "need" a
- 9600 baud modem, and why would you assume you could not use one? It
- runs 9600 baud terminals OK, why not a modem? With an intelligent I/O
- card you could even push a DTE rate Higher than 9600. NOTE: This is
- *NO* different than SCO Unix 3.2 It can't push a modem on a dumb port
- with a '450 or lower chip reliably either.
-
- Oh, BTW, 9 of the 286's above were running USR Dual Standards and the
- 286's were 286/12's. They were POS systems pushing a lot of transaction
- data to a home office at night via modem.
-
- >
- >>So what I meant by mature and stable was that it's had more time to have
- >>all the major problems resolved, and to become more refined ...
- >
- >I'd hardly call Xenix "refined". "Old", maybe, but old does not
- >mature make.
- >
-
- No, refined is a good word. The bugs that weren't finally fixed are
- well known and documented. Most all of the device drivers are stable,
- and haven't changed much recently. Refined & mature IMPLY some age.
-
- >>What would inittab provide that /etc/ttys doesn't? Under *normal*
- >>circumstances, /etc/ttys w/ enable/disable does just fine.
- >
- >Uh, there are lots of things you can do with inittab that you can't do
- >with /etc/ttys. Like spawn something that's not called "/etc/getty".
- >There are other things I could go into, but they have more to do with
- >the SysV-style rc scripts vs. the V7-style rc scripts.
- >
-
- I like inittab don't get me wrong. Hacking around I have spawned things
- as you say on the home box. I've just never really had the need to do
- any of that stuff at a clients office. Mostly use cron & rc for the
- rest of it. No real use for all the run-level stuff either.
-
- >>Oh please ... the configure script makes this simple and painless ...
- >>who cares what "style" configuration the system uses as long as it
- >>works ... I've never once had a problem configuring Xenix ...
- >
- >You obviously haven't ever tried to add more than one or two
- >third-party drivers to a Xenix system. I have. And then I had to
- >clean up the link_xenix script with an editor because the drivers had
- >each stomped on each other.
-
- Hehehe, These problems don't dissappear with AT&T's scheme under SVR3.2
- either. Sorry, Lot's of new drivers will conflict eventually requiring
- some hand patching. And tell me something. Which takes longer?
- Hacking a line in /usr/sys/conf/link_xenix or modifying an entry for a
- driver in:
-
- /etc/conf/sdevice.d
- /etc/conf/init.d
- /etc/conf/cf.d/mdevice
- /etc/conf/pack.d/device_name/*
-
- I rest my case you can get typists cramp on this one. OH! and I forgot
- one of my 3.2 favorites: inittab. To modify a line setting for getty
- you have to edit TWO files /etc/inittab AND , depending on the entry,
- /etc/conf/cf.d/init.base *OR* /etc/conf/init.d/{something}. Elsewise
- the nasties will grab you next time you rebuild.
-
- [mail ...]
-
- Yea, No domains in Xenix. No need for it on a point of sale system
- either. For interoffice stuff the supplied works fine. So, If you are
- a net.wizard and want to talk to the world at random you have to go to
- smail or something. On the other hand for fixed stuff you can alias
- with ELM or whatnot and avoid all of it.
-
- >>So Unix is better than Xenix because you don't want to learn Xenix?
- >>Sure it's different, but are all Unixes out there the same? Hell no.
- >
- >Yes, Unix is better than Xenix because it's the same as other
- >Unix-based products. Again, we're coming back the standards argument.
- >The primary reason a lot of our customers use Unix on PCs is because
- >it interoperates well with their other Unix machines. Xenix *may* be
- >appropriate if interoperability is not and never will be a concern,
- >but I don't believe *anyone* can say that in this day and age.
-
- Sure we can. "Open Systems" is a crock of chet. My clients want to get
- the job done as cheaply as possible. SCO 3.2.4 damn sure ain't cheap,
- and neither is my time to install it.
-
- You want "standards" Buy DOS & throw it on a PC. It is a de facto
- standard in this industry. There are more than 10 times as many DOS
- PC's out there than anything else, and a wider gap for software apps. I
- just can't stand it, and it is lousy for sharing data, and applications.
- --
- Keith Smith uunet!ksmith!keith 5719 Archer Rd.
- Digital Designs BBS 1-919-423-4216 Hope Mills, NC 28348-2201
- Somewhere in the Styx of North Carolina ...
-