Date: Fri, 19 Jan 1996 20:33:25 -0800 (PST) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: tom@uniserve.com (Tom Samplonius) Cc: jgreco@brasil.moneng.mei.com, hackers@freebsd.org, stable@freebsd.org Subject: Re: ccd driver or 2.1R available Message-ID: <199601200433.UAA10983@GndRsh.aac.dev.com> In-Reply-To: <Pine.BSF.3.91.960119142201.2575C-100000@haven.uniserve.com> from "Tom Samplonius" at Jan 19, 96 02:25:01 pm
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> > > 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
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