From owner-freebsd-stable Sat Aug 10 13:27:39 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 50F2337B400 for ; Sat, 10 Aug 2002 13:27:35 -0700 (PDT) Received: from postal1.es.net (postal1.es.net [198.128.3.205]) by mx1.FreeBSD.org (Postfix) with ESMTP id BB49943E6E for ; Sat, 10 Aug 2002 13:27:34 -0700 (PDT) (envelope-from oberman@es.net) Received: from ptavv.es.net ([198.128.4.29]) by postal1.es.net (Postal Node 1) with ESMTP id GQF37091; Sat, 10 Aug 2002 13:27:33 -0700 Received: from ptavv (localhost [127.0.0.1]) by ptavv.es.net (Postfix) with ESMTP id C33305D04; Sat, 10 Aug 2002 13:27:32 -0700 (PDT) To: Ian Dowse Cc: stable@freebsd.org Subject: Re: boot0cfg and fdisk will not write an mbr to boot past cyl. 1023 In-reply-to: Your message of "Sat, 10 Aug 2002 01:46:29 BST." <200208100146.aa19136@salmon.maths.tcd.ie> Date: Sat, 10 Aug 2002 13:27:32 -0700 From: "Kevin Oberman" Message-Id: <20020810202732.C33305D04@ptavv.es.net> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > Date: Sat, 10 Aug 2002 01:46:29 +0100 > From: Ian Dowse > > In message <20020809211608.54A3A5D04@ptavv.es.net>, Kevin Oberman writes: > >I have confirmed that fdisk under sysinstall(8) writes a boot block > >that will work for booting from slices that begin past cylinder > >1023. boot0cfg(8) and fdisk(8) write an MBR that is unable to boot > >from a slice that starts above 1023. > > Did you try "boot0cfg -o packet"? From boot0cfg(8): > > packet Use the disk packet (BIOS Int 0x13 extensions) interface, > as as opposed to the legacy (CHS) interface, when doing > disk I/O. This allows booting above cylinder 1023, but > requires specific BIOS support. The default is > `nopacket'. Ahh. I really need to learn to read the WHOLE man page. Thanks, Ian. R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message