From owner-freebsd-hackers Thu Feb 22 06:29:12 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id GAA21182 for hackers-outgoing; Thu, 22 Feb 1996 06:29:12 -0800 (PST) Received: from mstr.hgc.edu (mstr.hgc.edu [129.5.16.228]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id GAA21170 for ; Thu, 22 Feb 1996 06:29:08 -0800 (PST) From: noni4737@mstr.hgc.edu Received: from sc1.hgc.edu ([129.5.144.1]) by mstr.hgc.edu (5.67a/IDA-1.5/HGC-1.10) id AA02963; Thu, 22 Feb 1996 09:29:06 -0500 Received: by sc1.hgc.edu (SMI-8.6/SMI-SVR4-HGC-02) id JAA02624; Thu, 22 Feb 1996 09:29:05 -0500 Date: Thu, 22 Feb 1996 09:29:05 -0500 Message-Id: <199602221429.JAA02624@sc1.hgc.edu> Content-Type: text Apparently-To: hackers@FreeBSD.org Sender: owner-hackers@FreeBSD.org Precedence: bulk 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