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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!news.ecn.uoknor.edu!news.uoknor.edu!news.nodak.edu!netnews1.nwnet.net!news.u.washington.edu!news.alt.net!news.serv.net!solaris.cc.vt.edu!news.mathworks.com!fu-berlin.de!news.belwue.de!News.Uni-Marburg.DE!news.th-darmstadt.de!hotb.RoBIN.de!flinx.RoBIN.de!alvman.RoBIN.de!not-for-mail From: ah@alvman.RoBIN.de (Andreas Haakh) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: 2.1R : Big install problems - Unstable system Date: 7 Dec 1995 23:22:29 GMT Organization: A poorly-installed InterNetNews site Lines: 56 Message-ID: <4a7svl$3sp@alvman.RoBIN.de> References: <1995Dec6.154738.1@ugun2a> NNTP-Posting-Host: alvman.robin.de Organisation: X-Newsreader: TIN [UNIX 1.3 950726BETA PL0] Grüazi, F. Marcos (marcos@uni2a.unige.ch) wrote: : : As subject line says.., I'm having lots of problems installing FBSD 2.1R. : : I've been running 2.0R for 1 year on a 486DX2 with 8MB RAM and a 540 Meg IDE : disk. : : When moving to 2.1R, I've added 32M RAM and a 2Gig SCSI disk with an Adaptec : 2842-VL controller. : : The partition scheme is as follows : IDE : 456 Meg for DOS : 64 Meg Swap : 20 Meg root (/) : SCSI : 1100 Meg for DOS : 800 Meg for /usr : : Now, my FBSD box could not stay stable for more than 5 hours. : I've tried to install 2.1 from scratch, compile kernels with lots of differents : options, slow down the SCSI transfer rate, add wait-states, etc... That sounds familiar ;-)) Well, I will not shut down my computer in order to tell you the exact settings but I still remember some things... First, I had a great stable system using a VESA 486 Green Mainboard with an ISA ET4000 card, an AHA 1542, an IO-card and an SMC Ethercard Elite. Nothing but ISA ... Then I decided to improve my system. I put the AHA1542 into my old 386 and bought the AHA 2842. That's where the trouble started. I received ed0-devicetimeouts, kernel panics, couldn't install OS/2 etc. I spent a week or more to try all possible settings. Checked io-addresses etc. again and again, added wait-states with no success. The solution for me was in the bios-setup. I changed lots of options. The one that solved my problem was for the AT Bus CLock. It was configured 'AUTO' and I assume it allways selected the highest rate. When I selected a fixed (lower) speed everything worked just fine. The disk-throughput was much better than before. This was all under FreeBSD 2.0.5 (I wait for the CD before I upgrade) but it should solve Your probs as well. There are still some bugs in the SCSI- system. The tape somtimes locks the SCSI-bus but I think these things are solved in 2.1R. Maybe You also have to change the settings for external Cache, I also played with that parameter but the final solution was the AT Bus CLOCK. Hope this helps. Andreas -- Andreas Haakh \ ah@alvman.RoBIN.de Kirschberg 12 b \ +49 6155 62615 64347 Griesheim \_________________________________________