From owner-freebsd-stable Fri Jan 19 20:35:02 1996 Return-Path: owner-stable Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id UAA04370 for stable-outgoing; Fri, 19 Jan 1996 20:35:02 -0800 (PST) Received: from GndRsh.aac.dev.com (GndRsh.aac.dev.com [198.145.92.241]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id UAA04348 Fri, 19 Jan 1996 20:34:57 -0800 (PST) Received: (from rgrimes@localhost) by GndRsh.aac.dev.com (8.6.12/8.6.12) id UAA10983; Fri, 19 Jan 1996 20:33:25 -0800 From: "Rodney W. Grimes" Message-Id: <199601200433.UAA10983@GndRsh.aac.dev.com> Subject: Re: ccd driver or 2.1R available To: tom@uniserve.com (Tom Samplonius) Date: Fri, 19 Jan 1996 20:33:25 -0800 (PST) Cc: jgreco@brasil.moneng.mei.com, hackers@freebsd.org, stable@freebsd.org In-Reply-To: from "Tom Samplonius" at Jan 19, 96 02:25:01 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-stable@freebsd.org Precedence: bulk > > > On Fri, 19 Jan 1996, Joe Greco wrote: > > > > Oh sure. One of them is "don't use a partition that starts at a > > > beginning of the slice". So please leave some space at the beginning > > > of the slice in the partitions you are combining (sd[1-4]g in the > > > above example). Of course, if someone can figure out why and fix it, > > > that will be great. > > > > I may be wrong, but isn't this because the standard disklabel leaves some > > space for the BIOS partition table, just in case it's the first slice on the > > disk? > > As far as I can tell from the manpage, the reason is that the ccd > disklabel could be mistaken by the system as the disk's label, because > they are in the same spot. The first bit of every partition has space > reserved for the label, but ccd will not reserve space. > > I believe swap will not work as the first partition on a disk for the > same reason, except that swap will overwrite the label! The swap code does not use the first 64 blocks or some such for that very reason. You can have swap at the front of a disk, though this has not always been true (I think it was David Greenman who finally fixed it). > Tom > -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD