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Path: sserve!newshost.anu.edu.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!cs.utexas.edu!swrinde!news.dell.com!tadpole.com!uunet!easix!knobel.gun.de!knobel!andreas From: andreas@knobel.knobel.gun.de (Andreas Klemm) Newsgroups: comp.os.386bsd.questions Subject: Re: Scsi hard drive with freebsd and dos Date: 18 Sep 1994 12:30:50 GMT Organization: home, 41469 Neuss, Germany Lines: 35 Distribution: inet Message-ID: <35hbtq$3ja@knobel.gun.de> References: <34qj2o$1gq@usenet.srv.cis.pitt.edu> <34qtri$kpf@hermes.unt.edu> NNTP-Posting-Host: knobel.gun.de X-Newsreader: TIN [version 1.2 PL2] Bruce Jackson (jackson@replicant.csci.unt.edu) wrote: : In article <34qj2o$1gq@usenet.srv.cis.pitt.edu>, : Ming Y Haung <myhst1+@pitt.edu> wrote: : > I plan to purchase a 2gig scsi 2 hard drive to replace the IDE I have : > now, the scsi has 2099 cylinders, and I heard that there is a problem : > to have the freebsd and dos coexist at the same hard drive if the hard : > drive's cylinders exceed 1024? Is this olny true for IDE drive or it : > is the case for SCSI also? If so, how might I use the same drive to : > load dos and freebsd? : You can still use your drive for both MSDOS and *BSD providing you : take a few precautions. If you are using the drive under MSDOS than : you are using some kind of translated disk geometry since MSDOS : doesn't supprot > 1024 cylinders. You will have to find out what the : MSDOS translated geometry is. When you install *BSD enter the : translated geometry that MSDOS uses instead of the actual geometry. If you install DOS look for the cylinder count when being in fdisk. My 643 MB Harddisk had the following values (tranlated geometry): 643 cylinder, 64 Heads, 32 sectors. No idea which values are used if you have a 2 GB hd ... but I only wanted to give you the tip to have a sharp eye when being in DOS's fdisk. When partitioning the disk using fdisk you simply have to leave space free, FreeBSD detects and uses it later. A nice program os-bs should be installed on the dos partition, that recognizes DOS and BSD partitions and allows you to boot either ... -- andreas@knobel.gun.de /\/\___ Wiechers & Partner Datentechnik GmbH Andreas Klemm ___/\/\/ - Support Unix - akl@wup.de -