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Article #716

Disto RAMDisk problems

#716
From: mike knudsen
Date: Wed, 25 Jun 1986 18:20
31 lines
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I have been having some troubles with a Disto Ram Disk pak
that I got at the Chicago Rainbowfest.

(1) You can format it with the orginal RS OS-9 "format",
but not with the "Sformat" that comes with SDisk.
Both go thru the motions of formatting (it's fun to see how
fast those tracks count up on the screen), but only after
a "format" job can you *write* files onto the ramdisk.
Funny thing is, after an "sformat" you can do a "free"
or "dir" and it looks fine.  Just don't write onto it!

(2) Modifying the device descriptor (to change # of tracks
or sides) seems to invalidate everything -- you can't even
format anymore (sformat gives error msg, format quietly
does nothing and returns to OS9).  Yes, I used "verify u" to
fix the CRC.
	That device descriptor is 35-track, SS.
	When I took it back to the Fest and complained,
Tony DiStefano (its designer) found a 40-track descriptor
in the library directory (full of those awful 2.0 names)
and made it work.  However, I'd like to know why you can't
customize the descriptors yourself.  Especially after that
Rainbow article a couple months ago about making special
formats on the Disto (eg, 28-track DS or 56-track SS).

Anybody out there had any luck with this little box?
I'm ready to piggyback it up to 512 K, but not till the
software issues are ironed out.  Thanks, mike k.

PS: I'm running OS9 1.01 still.  The benefits of 2.0
don't seem to justify the grief required.
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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbosgd!ihnp4!ihwpt!knudsen

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbosgd!ihnp4!ihwpt!knudsen
From: knudsen@ihwpt.UUCP (mike knudsen)
Newsgroups: net.micro.6809
Subject: Disto RAMDisk problems
Message-ID: <930@ihwpt.UUCP>
Date: Wed, 25-Jun-86 14:20:49 EDT
Article-I.D.: ihwpt.930
Posted: Wed Jun 25 14:20:49 1986
Date-Received: Fri, 27-Jun-86 07:02:23 EDT
Distribution: net
Organization: AT&T Bell Laboratories
Lines: 31