Date: Sat, 26 Oct 2002 10:19:14 +0100 (BST) From: Mark Valentine <mark@thuvia.demon.co.uk> To: Terry Lambert <tlambert2@mindspring.com> Cc: Julian Elischer <julian@elischer.org>, Poul-Henning Kamp <phk@critter.freebsd.dk>, "M. Warner Losh" <imp@bsdimp.com>, freebsd-arch@freebsd.org Subject: Re: cvs commit: src/lib/libdisk Makefile chunk.c write_alpha_disk.c write_i386_disk.c write_pc98_disk.c Message-ID: <200210260919.g9Q9JEK8098958@dotar.thuvia.org> In-Reply-To: <3DB9D2A6.5FBF0CE9@mindspring.com>
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> From: Terry Lambert <tlambert2@mindspring.com> > Date: Fri 25 Oct, 2002 > Subject: Re: cvs commit: src/lib/libdisk Makefile chunk.c write_alpha_disk.c write_i386_disk.c write_pc98_disk.c > What I actually think you mean is that the partition table entries > are reordered, and you want them to be distinguished gy the partition > type IS (e.g. "165"), even though there are possibly multiple entries > with identical partition type IDs. Spot on. It's a lousy algorithm, but it's what DOS seems to use, and is why DOS survives a reordering of the single primary partition it supports. QNX appears to try its best to echo the DOS behaviour, yet work around its limitations: # uname -rms QNX 6.2.0 x86pc # df /pkgs/base/public/l 0 0 0 100% / /dev/hd0t79 2779245 920357 1858888 34% / /boot/fs/qnxbase.qf 98785 98001 784 100% /pkgs/base/ /dev/hd1t12 39853760 6399680 33454080 17% /fs/hd1-dos/ /dev/hd0t6 208544 17904 190640 9% /fs/hd0-dos/ /dev/fd0 0 0 0 100% /dev/cd0 0 0 0 100% (/fs/cd0/) /dev/hd1 39876480 39876480 0 100% /dev/hd0 626472 626472 0 100% /dev/hd0t131.2 /dev/hd0 5108607 5108607 0 100% /dev/hd0t131.1 /dev/hd0 8177022 8177022 0 100% /dev/hd0t131 /dev/hd0 497952 497952 0 100% /dev/hd0t130 /dev/hd0 5108670 5108670 0 100% /dev/hd0t165 /dev/hd0 22510656 22510656 0 100% They must do this for a reason (the QNX folks are a bright bunch). Cheers, Mark. -- Mark Valentine, Thuvia Labs <mark@thuvia.co.uk> <http://www.thuvia.co.uk>; "Tigers will do ANYTHING for a tuna fish sandwich." Mark Valentine uses "We're kind of stupid that way." *munch* *munch* and endorses FreeBSD -- <http://www.calvinandhobbes.com>; <http://www.freebsd.org>; To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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