From owner-freebsd-fs Thu Oct 5 3:56:13 2000 Delivered-To: freebsd-fs@freebsd.org Received: from mail-relay.eunet.no (mail-relay.eunet.no [193.71.71.242]) by hub.freebsd.org (Postfix) with ESMTP id 0F54237B503 for ; Thu, 5 Oct 2000 03:56:11 -0700 (PDT) Received: from login-1.eunet.no (login-1.eunet.no [193.75.110.2]) by mail-relay.eunet.no (8.9.3/8.9.3/GN) with ESMTP id MAA82502; Thu, 5 Oct 2000 12:56:07 +0200 (CEST) (envelope-from mbendiks@eunet.no) Received: from localhost (mbendiks@localhost) by login-1.eunet.no (8.9.3/8.8.8) with ESMTP id MAA13318; Thu, 5 Oct 2000 12:56:07 +0200 (CEST) (envelope-from mbendiks@eunet.no) X-Authentication-Warning: login-1.eunet.no: mbendiks owned process doing -bs Date: Thu, 5 Oct 2000 12:56:07 +0200 (CEST) From: Marius Bendiksen To: Bruce Evans Cc: freebsd-fs@FreeBSD.ORG Subject: Re: Partitioning (was: ccd with other filesystems) In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > This is well known. It's more interesting that you can support up > to about 2^32 partitions (all empty) or about 2^31 partitions (1 sector > each). The main problems with the DOS partition table is that it has > no signatures or checksums. Regarding checksums; true. This is a shortcoming, though it can be worked around by abusing the space normally used for code. Regarding signatures; the signature 0xaa55 (intel byte order) trails the four slots holding the actual layout data. Marius To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message