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Date:      Thu, 22 Feb 1996 09:29:05 -0500
From:      noni4737@mstr.hgc.edu
Message-ID:  <199602221429.JAA02624@sc1.hgc.edu>

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For what it's worth:

I believe there is a compatability problem with the MCD PCI chipset.

I have the Walnut Creek FreeBSD 2.1 CDROM and have installed the OS
on a NEC PowerMate VP75.  The machine contains an integrated dual channel
PCI harrd disk controller.  Primary Master is a 1.0G drive, Primary Slave
is a 240M drive, and Secondary Master is a CDROM.  Initial installation
was done from a DOS-FAT partition.

Subsequent CDROM access from FreeBSD results in a system hang which only
a power reset will fix.  The same problem occurred with OS/2 Warp and
Windows NT 3.5.  IBM's fix to the problem was the addition of two drivers
(BASEDEV=CMD640X.ADD and BASEDEV=CMDATAPI.FLT) to overcome data read
conflicts.  These drivers disable the read-ahead mode for the RZ1000 and
CMD640x PCI IDE chips.  (Refer to Warp FixPak XR_W016.)  This problem
was also resolved in Windows NT 3.51.

Incidentally, I could not install any packages from the FAT partition.
It seems there is a character case translation problem in locating the files.

In any event, A Great BIG Thank You to all who have made BSD available
to the general public.  I consider your efforts to be deemed as classical
as Knuth's programming volumes.

Walter Noniewicz
noni4737@mstr.hgc.edu





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