From owner-freebsd-current Sat Nov 30 2:26:55 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id ACB1737B401; Sat, 30 Nov 2002 02:26:54 -0800 (PST) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id 23A8443E88; Sat, 30 Nov 2002 02:26:53 -0800 (PST) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.6/8.12.6) with ESMTP id gAU8pPfN014237; Sat, 30 Nov 2002 09:51:26 +0100 (CET) (envelope-from phk@critter.freebsd.dk) To: Kirk McKusick Cc: Manfred Antar , current@FreeBSD.ORG, Robert Watson , re@FreeBSD.ORG Subject: Re: Update to UFS2 Superblock Format In-Reply-To: Your message of "Fri, 29 Nov 2002 23:11:55 PST." <200211300711.gAU7Bt59078123@beastie.mckusick.com> Date: Sat, 30 Nov 2002 09:51:25 +0100 Message-ID: <14236.1038646285@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <200211300711.gAU7Bt59078123@beastie.mckusick.com>, Kirk McKusick wr ites: >You will have to ask Puol-Henning Kamp, but I do not believe that >he has yet put together a bootstrap for the i386 platform that can >boot from a UFS2 filesystem. As such, I believe that you are >required to have a UFS1 root on the i386 at this time. I have >copied Poul-Henning Kamp so that he can correct me if I am incorrect >on this point. It is possible to boot UFS2 on i386, but the bootblocks are larger than 8k and the foot-shooting potential is therefore over my threshold for something I want to try to rush into 5.0. The basic procedure is: compile boot2 with BOOT2_UFS=yes change the BBSIZE #define in the disklabel program and recompile. Make sure you don't trash your filesystem when you write the new bootblocks. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message