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Date:      Mon, 1 Aug 2005 23:24:22 -0400
From:      Kris Kennaway <kris@obsecurity.org>
To:        Mark Terribile <materribile@yahoo.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ATA over 127 GByte on FBSD 4.8 ?
Message-ID:  <20050802032422.GA73883@xor.obsecurity.org>
In-Reply-To: <20050802024031.35833.qmail@web33502.mail.mud.yahoo.com>
References:  <20050802024031.35833.qmail@web33502.mail.mud.yahoo.com>

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On Mon, Aug 01, 2005 at 07:40:31PM -0700, Mark Terribile wrote:
>=20
> =3D=3D=3DI recently replaced smaller drives with a 160G and 250G drives (=
IDE).
> They were on the Gigabyte motherboard's SiS 963 chipset.  I discovered th=
at
> attempts to access anything above 127G resulted in errors:
>=20
>   pg root:root# dd if=3D/dev/ad6 of=3D/dev/null bs=3D2k skip=3D51200000
>   dd: /dev/ad6: Input/output error
>   1261767+0 records in
>   1261767+0 records out
>   2584098816 bytes transferred in 795.559900 secs (3248151 bytes/sec)
>   pg root:root#
>=20
> =3D=3D=3Dand (from the console and /var/log/messages)
>   Aug  1 21:58:09 moleend /kernel: ad6: hard error reading fsbn 419694136=
 of
> 20984
>   7068-209847071 (ad6 bn 419694136; cn 26124 tn 191 sn 43) status=3D59 er=
ror=3D40
>=20
> =3D=3D=3DOn the assumption that the problem was in the controller, I purc=
hased a
> Promise Ultra 133 TX2; the result was the same.
>=20
> =3D=3D=3DI'm on 4.8, and I'd prefer to have these disks working BEFORE an=
y upgrade.
> If the upgrade must be to 5.X, then I really^3 want to have these disks
> working first.  (They're not my primary drives; I use them for rotating
> backup and large projects.  My primary drives are nice, well-behaved,
> >expensive< SCSI drives.)

Try 4.11 if you don't want to make the leap to 5.x - it's unlikely
that anyone will be able to help you if the problem is in 4.8 itself.
4.11 can definitely access >127GB.

Kris

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