CD-ROM from SCO unlikely
Steven M. Schultz
sms at moe.2bsd.com
Sat Feb 28 14:43:41 AEST 1998
Tim -
> What are you going to do - wait until Steven dies (I swear he'll be releasing
> updates to 2BSD for the rest of his life) before making a CD?
The pace is slowing down due to lack of copious free time for major
projects but yeah, i kinda figure every couple months I'll find
something that needs fixing/tweeking/etc ;)
> Incidentally, a couple of weeks ago I made a nice bootable Iomega ZIP
> cartridge with the current 2.11 generic kernel and everything in /usr. It all
> barely fits in the 100 Mbytes (well, 3*65536*512 bytes) available, and
How "speedy" is a ZIP drive? I keep threatening to get a JAZ drive
for my 11 - they're nice. I don't like the DB25 style of cable
that the normal external ZIP drive uses so I'd have to find one of the
rare internal ZIP drives and stuff it into a traditional shoebox.
> -11's with SCSI host adapters than the traditional tape distribution.
Tape's good for backups though, so when I don't feel like putting up
with the racket of the 9-track I just cable up the 4mm drive to
the 11/73. Alas, the QIC style of drives don't work, at least not
with the Emulex UC08. For a brief moment the Seagate Tapestore 8000
appeared to work but then the whole system/controller hung (I suspect
the UC08 doesn't know how to deal with more modern tape drives).
The older QIC (Wangtek-5150ES) doesn't work at all - the UC08 barfs
at drives that don't do variable record mode. Do the CMD adaptors
do any better with "PC" style SCSI tape devices?
> It's also worth pointing out that on the Q-bus SCSI host adapters that I
> have - the CMD CQD440, the Emulex UC08, and the Andromeda SCDC - bootable
> CD-ROM distributions are entirely possible. I'm not sure if 2.11BSD will
Uh, 2.11 doesn't know how to deal with 2048 byte sectors or the
ISO9660 filesystem. Now a MO drive that used 512 byte sector'd
media should work just fine - but that style of drive is fading
in popularity.
> boot from a read-only device - Steven, have you tried this?
It'll panic. For a couple reasons: pipes are implemented via
the filesystem rather than sockets so anything involving pipes
needs a rw filesystem. And a swap area is needed. If there's
memory available there won't be any actual swapping going on but
argument gathering, etc during an 'exec' can use a small amount of
swap space. It might be possible to use a 'ram' disk but it's not
clear to me it'd be worth the trouble.
Steven
Received: (from major at localhost)
by minnie.cs.adfa.oz.au (8.8.5/8.8.5) id RAA20703
for pups-liszt; Sat, 28 Feb 1998 17:07:33 +1100 (EST)
X-Authentication-Warning: minnie.cs.adfa.oz.au: major set sender to owner-pups at minnie.cs.adfa.oz.au using -f
More information about the TUHS
mailing list