From owner-freebsd-fs@FreeBSD.ORG Thu Nov 20 16:40:25 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AE5AA106564A for ; Thu, 20 Nov 2008 16:40:25 +0000 (UTC) (envelope-from dfr@rabson.org) Received: from itchy.rabson.org (unknown [IPv6:2002:50b1:e8f2:1::143]) by mx1.freebsd.org (Postfix) with ESMTP id 6319F8FC1B for ; Thu, 20 Nov 2008 16:40:25 +0000 (UTC) (envelope-from dfr@rabson.org) Received: from [IPv6:2001:470:909f:1:21b:63ff:feb8:5abc] (unknown [IPv6:2001:470:909f:1:21b:63ff:feb8:5abc]) by itchy.rabson.org (Postfix) with ESMTP id A6E4E3F8F; Thu, 20 Nov 2008 16:39:10 +0000 (GMT) Message-Id: <81FBD67A-6908-4416-822D-CF943CDD50CF@rabson.org> From: Doug Rabson To: Ulf Lilleengen In-Reply-To: <20081120172634.GA1438@carrot.studby.ntnu.no> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v929.2) Date: Thu, 20 Nov 2008 16:40:23 +0000 References: <367b2c980811191412h5e0af470k165b37edc2fc5853@mail.gmail.com> <16C31872-6A83-4FAB-AC85-213D604CDDE4@rabson.org> <20081120172634.GA1438@carrot.studby.ntnu.no> X-Mailer: Apple Mail (2.929.2) X-Virus-Scanned: ClamAV 0.92/8653/Thu Nov 20 09:04:07 2008 on itchy.rabson.org X-Virus-Status: Clean Cc: freebsd-fs@freebsd.org Subject: Re: ZFSBoot try and bsdlabel bootstrap code X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Nov 2008 16:40:25 -0000 On 20 Nov 2008, at 17:26, Ulf Lilleengen wrote: > On Thu, Nov 20, 2008 at 04:07:50PM +0000, Doug Rabson wrote: >> >> On 19 Nov 2008, at 22:12, Olivier SMEDTS wrote: >> >>> Hello, >>> >>> I want to boot off a ZFS pool (version 13) on an USB stick for >>> testing >>> purposes. But I'm stuck with the bsdlabel bootstrap code size... >>> I'm using a 2 hours old CURRENT. >>> >>> # kldload usb2_storage_mass >>> # kldload zfs >>> # dd if=/dev/zero of=/dev/da0 bs=512 count=32 >>> # fdisk -BI da0 >>> # dd if=/dev/zero of=/dev/da0s1 bs=512 count=32 >>> # bsdlabel -wB -b /boot/zfsboot da0s1 >>> bsdlabel: boot code /boot/zfsboot is wrong size >>> >>> Is what I'm trying to do with bsdlabel wrong ? >>> I previously tried with the default bootstrap code but I had an >>> (expected) "boot: Not ufs" error at boot. >>> >>> PS : I'm not subscribed to this list. >> >> The process for install zfsboot is a bit manual (and undocumented). > I see bsdlabel is restricted by BBSIZE. Could we perhaps increase > it? or is > this something that will break everything? I suspect it might be > hard to > maintain bsdlabel backwards compability with such a change. As an > alternative, adding a flag for extended block size might be an option. That won't help much - bsdlabel understands how to install bootcode for UFS only. The boot process for ZFS is a bit different.