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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!yarrina.connect.com.au!werple.apana.org.au!otis.apana.org.au!serval.net.wsu.edu!netnews.nwnet.net!oracle.pnl.gov!osi-east2.es.net!lll-winken.llnl.gov!uwm.edu!news.alpha.net!news.mathworks.com!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!gumby!andrews-cc!gillham From: gillham@andrews.edu (Andrew Gillham) Newsgroups: comp.os.386bsd.questions Subject: Re: Boot floppy error on 2.88 drive Date: 22 Nov 1994 17:36:13 GMT Organization: Andrews University Lines: 33 Message-ID: <3ata6d$7kp@orion.cc.andrews.edu> References: <3at3t1$8n0@necco.harvard.edu> <3at8sh$7a8@orion.cc.andrews.edu> NNTP-Posting-Host: edmund.cs.andrews.edu I said with hasty abandon: > >If you format a diskette to 2.88 and use something like norton's >diskedit to write out the first 20k or so of your boot floppy image to >this disk, you can then boot it. Once at the boot prompt, switch the >disk to the 1.44MB boot floppy. Note that rawrite doesn't work, as it >doesn't understand 36 sector floppies either. Oops, mea culpa, you have to write *ALL* of the image out to the 2.88 and switch the disk *AFTER* the kernel is loaded, i.e. at the "Insert root filesystem" prompt. Note that you can put the install disk like normal, but you have to switch to the 1.44MB kernel-copy instead of the 2.88MB kernel-copy you booted off of. (as the kernel probes the drive as a 1.44MB, and you have it written out as a 2.88MB) I know, lots of hoop jumping, but if you don't have a working system handy it's better than no NetBSD... :-) Well shit, I just tried this with the "real" NetBSD 1.0 boot disks and I got a "fatal protection fault in supervisor mode" as soon as I pressed a key at the Insert file system floppy prompt. This *worked* with 1.0BETA, honest! Well, back to the drawing board.. -Andrew PS. "trap type 4 code 0 eip f810236a cs f7bf0008 eflags 10206 cr2 0 cpl ffffffff panic: trap" -- ========================================================== Andrew Gillham gillham@andrews.edu LAN/WAN/Netware/Unix Analyst gillham@whirlpool.com ==========================================================