From owner-freebsd-questions Mon May 17 12:13:35 1999 Delivered-To: freebsd-questions@freebsd.org Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.144.32]) by hub.freebsd.org (Postfix) with ESMTP id 072E414A2D for ; Mon, 17 May 1999 12:13:32 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.8.8/8.8.8) with ESMTP id MAA10249; Mon, 17 May 1999 12:13:16 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Date: Mon, 17 May 1999 12:13:15 -0700 (PDT) From: Doug White To: Bradley Benson Cc: freebsd-questions Subject: Re: Max allowed size of IDE drives In-Reply-To: <000801be9d60$2c92ec00$6400a8c0@brad.centralmhmr.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 13 May 1999, Bradley Benson wrote: > I know the later 2.2.x releases didn't support IDE drives larger than 8GB. > I'm under the assumption that this changed with 3.0, but I've had no luck > finding information on the change. I believe 10GB IDE drives are now > supported, and if so what about some of the newer 13GB and even 17GB > drives? --Thanks Support was added in April 1998. Try setting flags '0xb0ffb0ff' on the wdc controller during the boot-ime configuration. From the wd(4) man page: For each drive there are four bit-fields encoded in a 16 bit integer: 0x8000 Test and use the 32bit transfer capability of the drive. 0x4000 If drive looks like it's coming out of sleep mode, assume it's confused and reinitialize it. 0x2000 Probe for and use the bus-mastering DMA capabilities of mod- ern PCI chipsets. 0x1000 Use LBA addressing instead of the default CHS addressing. 0x0f00 Force number of heads to ((flags & 0xf00)>>8), recalculate number of cylinders to match. 0x00ff Test and use multi-sector transfer mode of this drive, max number of sectors attempted is (flags & 0x00ff). Doug White Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve http://gladstone.uoregon.edu/~dwhite | www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message