*BSD News Article 87519


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From: mcampbel@erols.com (M. Campbell or Lee Cremeans )
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Jazz Drives
Date: Sun, 26 Jan 1997 19:41:09 GMT
Organization: This house? Are you kidding?
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"John" <noone@nowhere.com> wrote:

>G.,
>I'm running FreeBSD off of a Jaz drive, with the NCR 53C810 controller.  I
>have had a couple of hiccups with this system that I can't explain:

>1.  Everytime the system boots BSD, I get the following message when the
>NCR driver does its probe on the Jaz drive:

>  sd1(ncr0:2:0) illegal request asc:24,0 invalid field in CDB
>  sd1(ncr0:2:0) could not mode sense (4).  Using ficticious geometry

That's because Iomega, in their infinite wisdom, didn't put
SCSI-standard geometry info on the Zip and the Jaz.  I would guess
they're trying to hide a trade secret or something....

>2.  On one occasion, *Something* corrupted the entire BSD file system.  I'm
>not sure, but I think it happened when I mounted my FAT drive and moved
>(with the mv command) a  .tgz file over onto the BSD side.  After the move,
>the .tgz file was unreadable.  And of course it was gone from the FAT side,
>so I couldn't check the integrity of the original file.  Shortly after
>that, I discovered the root file system was also trashed.

The msdosfs code is buggy at the moment; mv'ing large files from BSD
to DOS will burn your house down.  Use cp instead.

Lee C.