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Received: by minnie.vk1xwt.ampr.org with NNTP id AA2068 ; Thu, 25 Feb 93 10:10:32 EST Newsgroups: comp.unix.bsd Path: sserve!manuel.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!usc!sol.ctr.columbia.edu!eff!news.oc.com!csci-wiermac.etsu.edu!user From: wier@merlin.etsu.edu (Bob Wier) Subject: Re: how do I undo 386BSD boot blocks? Message-ID: <wier-230293204116@csci-wiermac.etsu.edu> Followup-To: comp.unix.bsd Sender: usenet@ra.oc.com Organization: East Texas State University References: <1993Feb12.184310.27616@jpl-devvax.jpl.nasa.gov> <C2sBM6.LxM@unix.portal.com> Date: Wed, 24 Feb 1993 03:44:40 GMT Lines: 39 In article <C2sBM6.LxM@unix.portal.com>, mykes@shell.portal.com (mike myke schwartz) wrote: > > Kaleb Keithley (kaleb@seaview) wrote: > : In article terry@cs.weber.edu (A Wizard of Earth C) writes: > : > because I wrote > : >>There are some poor assumptions about telling people to use 'fdisk /mbr'. > : > > : >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: I'm not sure whom is flaming whom here (attributions get tough to follow 3 levels deep). However, I had the bootable problem trying to reinstall MS DOS 4.0 after putting LINUX on my machine (have sinced switched to 386BSD). Numerous people suggested fdisk /mbr but it's not present in 4.0 (latest the school here had). I finally found an anti virus program at WUARCHIVE MBRVIRUS (or something quite similar). If you're working with MSDOS, it just has 4 different versions (corresponding to older versions of MSDOS) which apparantly re-write the MBR. Despite dire warnings to the contrary, I ran it on my disk and it worked just fine for 3.3, but gave an error message for 4.1 - however it looked like it did it's stuff because I can now boot MSDOS again. Now, a question - I note in one of the FAQs that you are supposed to create partitions with IDs of something like A6 and A7 (or is it A5 and A6) for 386BSD and swap areas. How do you change the partition id? Via Disklabel? I'd like to get a larger swap space than the "normal" 5 mb or so. THANKS -Bob W. ======== insert usual disclaimers here ============ Bob Wier, East Texas State U., Commerce, Texas wier@merlin.etsu.edu (watch for address change)