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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!spool.mu.edu!howland.reston.ans.net!newsfeed.internetmci.com!netnews.nwnet.net!news.u.washington.edu!lliu From: lliu@u.washington.edu (L. Liu) Newsgroups: comp.unix.bsd.freebsd.misc Subject: FreeBSD 2.1 can't boot with serial ports enabled Date: 22 Jan 1996 08:20:48 GMT Organization: University of Washington Lines: 9 Message-ID: <4dvhd0$6lv@nntp5.u.washington.edu> NNTP-Posting-Host: homer03.u.washington.edu NNTP-Posting-User: lliu My motherboard has an on-board "Multi-I/O" chip, UMC UM8663, which supports two 16550-compatible serial ports and one parallel port. With the serial ports enabled, FreeBSD 2.1 won't boot. The screen goes blank and the system hangs. I have to use the "-c" option to disable the serial ports so I can install FreeBSD and the system can boot after installation. I'm wondering if anyone else has the same problem. Is there a patch, which can make FreeBSD properly probe the UMC chip? Thanks for any help. Eugene Liu