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Received: by minnie.vk1xwt.ampr.org with NNTP id AA1187 ; Tue, 23 Feb 93 14:29:24 EST Path: sserve!manuel.anu.edu.au!munnari.oz.au!hp9000.csc.cuhk.hk!saimiri.primate.wisc.edu!caen!uwm.edu!spool.mu.edu!darwin.sura.net!gatech!ncar!destroyer!news.itd.umich.edu!nosegoblin.css.itd.umich.edu!pauls From: pauls@css.itd.umich.edu (Paul Southworth) Newsgroups: comp.unix.bsd Subject: Re: how do I undo 386BSD boot blocks? Date: 12 Feb 1993 04:32:24 GMT Organization: University of Michigan ITD Consulting and Support Services Lines: 16 Message-ID: <1lf98o$fpt@terminator.rs.itd.umich.edu> References: <1lelqg$dfc@terminator.rs.itd.umich.edu> <1993Feb12.010335.26398@jpl-devvax.jpl.nasa.gov> <1993Feb12.024645.20918@fcom.cc.utah.edu> NNTP-Posting-Host: nosegoblin.css.itd.umich.edu In article <1993Feb12.024645.20918@fcom.cc.utah.edu> terry@cs.weber.edu (A Wizard of Earth C) writes: >There is an alternate method in INSTALL.NOTES. Basically, you don't need >to fdisk the mbr for a valid one to be written -- you just have to invalidate >it. This can be accomplished with either of the following: > > 1) low-level format the disk. Bad idea in general for IDE users, eh? I mean, I low-level IDE disks when they are truly roasted, but not before. > 2) boot dist.fs or fixit.fs and type dd if=/386bsd of=/dev/wd0a What does this do? Not familiar with it and I sort of think I shouldn't experiment with it on my system.... :) pauls@umich.edu