From owner-freebsd-arch Fri Nov 3 10:23:32 2000 Delivered-To: freebsd-arch@freebsd.org Received: from mail.wgate.com (mail.wgate.com [38.219.83.4]) by hub.freebsd.org (Postfix) with ESMTP id A283B37B4C5 for ; Fri, 3 Nov 2000 10:23:30 -0800 (PST) Received: from jesup.eng.tvol.net ([10.32.2.26]) by mail.wgate.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2650.21) id VT2YCH44; Fri, 3 Nov 2000 13:23:35 -0500 Reply-To: Randell Jesup To: Barry Pederson Cc: arch@FreeBSD.ORG Subject: Re: Like to commit my diskprep References: <200011021632.eA2GWZ138286@earth.backplane.com> <3A01C6A3.23C4CD61@medicine.nodak.edu> From: Randell Jesup Date: 03 Nov 2000 13:27:26 -0500 In-Reply-To: Barry Pederson's message of "Thu, 02 Nov 2000 13:55:15 -0600" Message-ID: User-Agent: Gnus/5.0807 (Gnus v5.8.7) Emacs/20.7 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Barry Pederson writes: >> The defaults for -b and -f and -c for newfs/etc are WOEFULLY >> out-of-date. See the sysinstall checkin comment I referenced. I use 16K >> myself. It's possible larger might be better, especially for large >> partitions - perhaps make it variable on partition size.... And 16 for cpg >> is truely criminal (can you say thousands of spare root blocks? And very >> slow newfs?) > >The man page for newfs says: > >--------- >BUGS > The boot code of FreeBSD assumes that the file system that carries the > kernel has blocks of 8 kilobytes and fragments of 1 kilobyte. You will > not be able to boot from a file system that uses another size. >--------- > >So I'd assume you have to be careful to leave the root at the current >defaults? (or make the boot code smarter?) From my system: a: 819200 0 4.2BSD 4096 16384 75 # (Cyl. 0 - 812*) So I think that documentation is buggy, not the code. Anyone else care to confirm? -- Randell Jesup, Worldgate Communications, ex-Scala, ex-Amiga OS team ('88-94) rjesup@wgate.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message