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Received: by minnie.vk1xwt.ampr.org with NNTP id AA1456 ; Tue, 23 Feb 93 14:42:33 EST Path: sserve!manuel.anu.edu.au!munnari.oz.au!yoyo.aarnet.edu.au!myall.awadi.com.au!myall!blymn From: blymn@awadi.com.au (Brett Lymn) Newsgroups: comp.unix.bsd Subject: Re: [386bsd] partitioning-question Date: 18 Feb 93 18:04:36 Organization: AWA Defence Industries Lines: 39 Message-ID: <BLYMN.93Feb18180436@mallee.awadi.com.au> References: <C2ED32.GE@malihh.hanse.de> NNTP-Posting-Host: mallee.awadi.com.au In-reply-to: clu@malihh.hanse.de's message of Sat, 13 Feb 1993 17:11:23 GMT >>>>> On Sat, 13 Feb 1993 17:11:23 GMT, clu@malihh.hanse.de (Carsten Lutz) said: C> 1. What is the 5MB-partition b used for ? Must I keep it ? ( And what do the C> asterisks after the Cyl.-numbers mean ? ) the b partition is your swap, I suspect that if you have no swap the machine will not boot (at least suns will not). The asterisks indicate that the partition does not start/end on a cylinder boundary, traditional wisdom says that partitions must start on a cylinder boundary, this limitation may have been removed (I think it has) but still putting your partitions on a cylinder boundary would be a good idea. C> 2. Why must there be one partition ( c ) "surrounding" all space used C> by 386bsd ? Not 100% sure about this one, I think it is more tradition so that you can dump the *entire* device to tape using dd, just speculation though. C> I want to repartition my disk to use Cyl.0-106 as swapspace. Two questions C> again: C> 1. Can I use offset 0 for my swappartition or will this override my bootblock ? C> 2. I build the following disktab entry ( only partition-info ): C> :pa#339264:oa#65056:ta=4.2BSD: \ C> :pb#10000:ob#404764:tb=unused: \ C> :pc#414263:oc#1:tc=unused: \ C> :pd#65055:od#1:td=swap C> Will this work ? ( swap-partition _before_ 4.2BSD-partition ) You must not use cylinder 0 for a "raw" partition like swap because the partition and boot info are stored in cylinder 0. If you want to make the swap the first partition then start the partition at 1 not 0, leave a one cylinder partition to hold the boot and partitioning info. -- Brett Lymn