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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!ihnp4.ucsd.edu!ames!hookup!yeshua.marcam.com!zip.eecs.umich.edu!newsxfer.itd.umich.edu!gatech!udel!news.sprintlink.net!news.world.net!news.teleport.com!news.teleport.com!not-for-mail From: bmk@teleport.com (bmk) Newsgroups: comp.os.386bsd.questions Subject: Re: FreeBSD - disklabeling sd1 and sd2 Date: 28 Jul 1994 16:56:32 -0700 Organization: Department of Redundancy Department Lines: 35 Message-ID: <319gjg$gkq@linda.teleport.com> References: <317bt8$mst@linda.teleport.com> <vanepp.775406918@sfu.ca> Reply-To: bmk@teleport.com NNTP-Posting-Host: linda.teleport.com In article <vanepp.775406918@sfu.ca>, Peter Van Epp <vanepp@fraser.sfu.ca> wrote: >bmk@teleport.com (bmk) writes: > >... > >>What I'd also like to do is make my third drive visible to FreeBSD as >>a single large DOS partition (I only need to do this so I can tar all [snip] > > You need to provide a 1 cylinder "a" partition on the third disk to >contain the BSD disk label otherwise (as you have discovered) it overwrites >the partition table when you label the drive. Below is a pfdisk printout >of the partition table on my first drive (FreeBSD is booted by bootmenu from >the second IDE) and the disklabel on it: > [snip] I figured this out this morning. What I did was create a dummy BSD partition starting at sector 2 of cyl 0 head 0, and ending on the last sector of the same cyl and head (In other words, AFTER the MBR, and before the DOS partition). I was then able to disklabel the disk safely. One hint I can give before anyone else tries this. Print out a copy of your partition table. I blew away mine more times than I care to mention. With a printout, you can easily repair it, using FreeBSD fdisk. DOS FDISK won't, of course. -- bmk@teleport.com | "You need only reflect that one of the best ways to get Portland, OR | yourself a reputation as a dangerous citizen these days is | to go about repeating the very phrases which our founding | fathers used in the struggle for independence."-C.A. Beard