From owner-freebsd-fs Sat Sep 30 19:49: 4 2000 Delivered-To: freebsd-fs@freebsd.org Received: from smtp03.primenet.com (smtp03.primenet.com [206.165.6.133]) by hub.freebsd.org (Postfix) with ESMTP id 0024037B502; Sat, 30 Sep 2000 19:48:59 -0700 (PDT) Received: (from daemon@localhost) by smtp03.primenet.com (8.9.3/8.9.3) id TAA20726; Sat, 30 Sep 2000 19:47:31 -0700 (MST) Received: from usr05.primenet.com(206.165.6.205) via SMTP by smtp03.primenet.com, id smtpdAAA2qayEO; Sat Sep 30 19:47:27 2000 Received: (from tlambert@localhost) by usr05.primenet.com (8.8.5/8.8.5) id TAA19148; Sat, 30 Sep 2000 19:48:53 -0700 (MST) From: Terry Lambert Message-Id: <200010010248.TAA19148@usr05.primenet.com> Subject: Re: ccd with other filesystems To: grog@lemis.com (Greg Lehey) Date: Sun, 1 Oct 2000 02:48:53 +0000 (GMT) Cc: tlambert@primenet.com (Terry Lambert), karsten@rohrbach.de (Karsten W. Rohrbach), andre@akademie3000.de (Andre Albsmeier), intmktg@CAM.ORG (Marc Tardif), freebsd-fs@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG In-Reply-To: <20001001120453.I43885@wantadilla.lemis.com> from "Greg Lehey" at Oct 01, 2000 12:04:53 PM X-Mailer: ELM [version 2.5 PL2] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > The kernel and other files loaded by the loader myst be below > > the 1024 cylinder boundary on the disk, since the FrrBSD boot > > loader, unlike Linux's LILO, can not read past cylinder 1024, > > since it does not understand how to make LBA BIOS calls > > properly. > > This is no longer the case. The restriction was lifted a few months > back. Someone should tell my Sony Vaio, which hated having 4.1 installed on it past 8G on an 18G drive. > > I have several systems, where the entirety of the disk (the "c" > > partition) is mounted as a single file system. > > You can do it, but it's not a good idea. I'd like to see a good > reason for doing this. If "c" is defined to be "the whole disk" , and you want to use "the whole disk", it makes sense. I uses to mount most of my CDROMs that way, as well. > > This appears to be a problem with not checking the label for > > overlap, since a mounted FS should not be spam'able under any > > circumstances. Protecting people from spam'ming unmounted FSs by > > pounding on "c" might be a laudable goal, but provides only a tiny > > amount of additional protection. > > This is a separate issue. Yes, disklabel should warn about a number > of things, including overlapping partitions and incorrect partition > types (c should be "unused", because by definition it overlaps all > other partitions). I really _don't_ want the use of "c" broken ("fixed"). The "c" partition is not "defined" to overlap; it merely does so by default and by istorical convention. I threw away this convention on many of my systems long ago, when I resigned myself to aving a DOS parititon table on my machines, when the Alpha and PReP platforms decided to require it as well. I have eight or ten disks that have non-overlapping "c" values that place their regions between "b" and "d" regions on the disk. If that's not enough, the best argument I have for three of those is "so that I can have one more partition that I would otherwise be permitted to have". Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message