*BSD News Article 30655


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Newsgroups: comp.os.386bsd.questions
Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!netnews.upenn.edu!dsinc!spool.mu.edu!howland.reston.ans.net!EU.net!Germany.EU.net!ping.de!robkaos!robsch
From: robsch@robkaos.ping.de (Robert Schien)
Subject: Endless reboots of FreeBSD 1.0.2 and 1.1
Message-ID: <1994May20.184214.608@robkaos.ping.de>
Organization: Private Site, Essen, Germany
X-Newsreader: TIN [version 1.2 PL2]
Date: Fri, 20 May 1994 18:42:14 GMT
Lines: 19

Three days ago I upgraded from a 386DX40 motherboard to a
486DX40 ISA board (Cyrix CPU). Now, FreeBSD 1.1 reboots
endless: It checks the filesystem on the SCSI hard drive
(FUJITSU-2964ESA connected to a AHA1542C with FAST SCSI disabled,
On the SCSI bus is a Archive 2525 tape drive, and a NEC Multispin
CDROM reader, too. The system has 16 MB RAM, and 256KB cache)
but immediately, when checking is finished, the system reboots.
I tried conservative BIOS setups (all caches and shadows disabled,
introduced waitstates etc), but nothing did help.
Because all data were backed up, I tried a fresh installation of 
FreeBSD 1.0.2 (off the CDROM). It failed when it tried to access
/dev/sd0d (at the moment when disklabel is set up): reboot!!

What's wrong with my system and what can I do beside buying a new
motherboard? :(((

Thanks in advance.

Robert