Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 13 Mar 2001 09:33:33 -0600
From:      "Michael J. Turner" <mike@inethouston.net>
To:        "Ben" <ben@cahostnet.com>, "Tarragon Allen" <melange@n12turbo.com>, <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Freebsd not seeing partitions correctly
Message-ID:  <000901c0abd2$f77b2ae0$0204a8c0@blah1>
References:  <005201c0ab85$a9be6080$0216a8c0@eburwd1.vic.optushome.com.au> <002801c0abbf$b320d330$6102a00a@nhqadmin17>

next in thread | previous in thread | raw e-mail | index | archive | help
ah yes, it was a jumper setting thanks.
That's wierd though. but it works thanks for you
help.


----- Original Message -----
From: "Ben" <ben@cahostnet.com>
To: "Tarragon Allen" <melange@n12turbo.com>; <freebsd-questions@FreeBSD.ORG>
Sent: Tuesday, March 13, 2001 7:15 AM
Subject: Re: Freebsd not seeing partitions correctly


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> The problem is not with BSD.  I had the same problem.  You have to
> look in your hard driver manual but there should be a jumper to set
> this so the correct amount comes up.  Your current jumper on your
> hard drive is preventing this.  BSD is just accepting what
> information is being passed to it instead of getting the actual disk
> amount.  Something to that matter, maybe someone can explain this a
> little better.  This was what was explained to me by someone on the
> list.  After I changed my jumper setting, magic everything worked
> fine.
>
> I wonder though if BSD shouldn't fix this because I didn't have this
> problem with my Windows nor Linux but did with BSD.  Well something
> to keep in back of the mind.  After all that's why they call it
> learning.
>
> Ben
> - ----- Original Message -----
> From: "Tarragon Allen" <melange@n12turbo.com>
> To: <freebsd-questions@FreeBSD.ORG>
> Sent: Tuesday, March 13, 2001 1:20 AM
> Subject: Fw: Freebsd not seeing partitions correctly
>
>
> >
> >  From: "Michael J. Turner" <mike@inethouston.net>
> >
> >  > Yeah I just tried that no go. It must be a freebsd prob i dunno.
> > > i don't think it's my BIOS being that windows picks everything up
> > > just fine
> >
> >  > > I have a 15gig drive with two partitions. one is 10GB the
> > other
> >
> >  > > This is what is showing up:
> > > > Disk Geometry: 256cyls/255 heads/63 sectors = 4112640 sectors
> > > > (2008MB)
> >
> >  See if you can set your cylinder count to something like 1002560
> > ..
> >
> >  The reason I pick that number is because :
> >
> >  presently the geometry says you have a 2.1 gb hard drive
> > (256 cyl * 255 heads * 63 sectors * 512 bytes = 2105671680 = ~ 2.1
> > gb)
> >
> >  The heads and sector counts are at max (255 and 63) so the only
> > value you can play with is the cylindar count.  You said you have a
> > 15 gb drive, so : (15*1024*1024*1024 = 16106127360 bytes (15 gb) )
> > (16106127360 / 255 / 63 = 1002560 (rounded down) )
> >
> >  Keep in mind that all the values kept by the BIOS/OS are actually
> > virtual; The hard drive takes these values and maps them to the
> > correct place internally.
> >
> >  This is the gist of the message I saw on the OpenBSD lists, but I
> > was unable
> > to find it, sorry - you might want to exercise some care (backup
> > important stuff etc) before playing with these values - I can give
> > no guarantee, having not done this myself (I just know the theory).
> >
> >  Incidently, 2.1 gb is the hard limit of some old BIOSes.  I have
> > seen Windows boot from a 2.1gb BIOS limited drive and then redetect
> > it at the larger size post-boot - this could be what is happening
> > here.  If you can get the geometry figures that Windows is using
> > and then match these in the FreeBSD settings, everything should be
> > hunky dory... if they differ a bit then there could be problems...
> >
> >  Hope this helps.
> >
> >  t
> >
> >  PS:  ... and I haven't even had FreeBSD successfully install on my
> > system yet (two days of experimenting).  :^)
> >
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-questions" in the body of the message
>
> -----BEGIN PGP SIGNATURE-----
> Version: PGPfreeware 7.0.3 for non-commercial use <http://www.pgp.com>;
>
> iQA/AwUBOq4dbght7rD8NlhDEQIQKwCeMLLok9Xgc10IU8cAZQIBhz8CXNoAoI6J
> XWtHmwOdXLV2ymjueEPu4e2z
> =6o7+
> -----END PGP SIGNATURE-----
>
>
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-questions" in the body of the message
>


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?000901c0abd2$f77b2ae0$0204a8c0>