Date: Thu, 20 Nov 2008 18:26:34 +0100 From: Ulf Lilleengen <lulf@stud.ntnu.no> To: Doug Rabson <dfr@rabson.org> Cc: freebsd-fs@freebsd.org Subject: Re: ZFSBoot try and bsdlabel bootstrap code Message-ID: <20081120172634.GA1438@carrot.studby.ntnu.no> In-Reply-To: <16C31872-6A83-4FAB-AC85-213D604CDDE4@rabson.org> References: <367b2c980811191412h5e0af470k165b37edc2fc5853@mail.gmail.com> <16C31872-6A83-4FAB-AC85-213D604CDDE4@rabson.org>
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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. -- Ulf Lilleengen
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