From owner-freebsd-questions Fri Jul 24 20:01:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA26594 for freebsd-questions-outgoing; Fri, 24 Jul 1998 20:01:06 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from norquay.tor.shaw.wave.ca (mail.tor.shaw.wave.ca [24.64.63.48]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id UAA26587 for ; Fri, 24 Jul 1998 20:01:02 -0700 (PDT) (envelope-from terry@shaw.wave.ca) Received: from shaw.wave.ca ([24.64.183.75]) by norquay.tor.shaw.wave.ca (Netscape Messaging Server 3.0) with ESMTP id AAA12043 for ; Fri, 24 Jul 1998 23:01:35 -0400 Message-ID: <35B94B47.2C45289E@shaw.wave.ca> Date: Fri, 24 Jul 1998 23:04:39 -0400 From: "Terry Rowe" X-Mailer: Mozilla 4.05 [en] (Win95; U) MIME-Version: 1.0 To: questions@FreeBSD.ORG Subject: failed kernel install: 2.2.6 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG After letting SCSI devices settle, I got "impossible mbxi status" and a reboot. I tried "everything" but still had the problem. Tech Support @ Walnut Creek suggested that the SCSI adaptor (Adaptec AHA-1540B) was faulty or I needed a rom upgrade for it. It turns out that I had optimistically set the adaptor's DMA transfer speed to 8 MB/sec (the choices are 8, 6.7, 5.7, 5.0). 5.0 works! But all the others give problems. My config: 486DX2/66 with an i/o bus speed of 33/4=8 MHz Perhaps someone could add this to some Knowledge Database so someone else in my situation will be spared the anguish. --Terry Rowe To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message