zpool upgrade, can't boot

[Eric Damien]

Hi Scot,

the link you provided is for a FreeBSD MBR Slice. 
How about the GPT? Because I have the exact same problem,
and after following  2.7 (modified for no mirror) on 
	http://wiki.freebsd.org/RootOnZFS/InstallingFreeBSD

I did
 Fixit# sysctl kern.geom.debugflags=0x10
 Fixit# gpart bootcode -b /zroot/boot/pmbr -p /zroot/boot/gptzfsboot -i 1 ad0

but got the following error:
	gpart: /dev/ad0p1: operation not permitted




On Tue, 3 May 2011 01:26:21 -0500
Scot Hetzel <swhetzel at gmail.com> wrote:

> On Mon, May 2, 2011 at 11:42 AM, Jeff Blank <jb000003 at mr-happy.com>
> wrote:
> > Hi,
> >
> > I recently upgraded from 8.0-STABLE to 8.2-STABLE (Apr. 29 checkout)
> > and upgraded my zpool (includes root FS) from v13 to v15.  This is a
> > dual-boot laptop, so I'm using MBR/boot0 and not GPT.  Here's what
> > happens when I boot:
> >
> > F1  Win
> > F2  ?
> > F3  FreeBSD
> >
> > F6 PXE
> > Boot:  F3
> > ZFS: unsupported ZFS version 15 (should be 13)
> > No ZFS pools located, can't boot
> >
> > I've googled around, but I can't find anything relevant for
> > MBR/boot0 configurations, just GPT.  I've ensured that the loaders
> > and boot0/boot1/boot2 are all new, and I rebuilt/reinstalled them
> > in a fixit environment just to be sure.  I also ran 'boot0cfg
> > -B' (with an appropriate -b), but nothing has changed.  How can I
> > get my pool booting again?
> >
> 
> You need to re-install the zfsboot code similar to step 10 (Install
> ZFS boot) in
> 
> http://wiki.freebsd.org/RootOnZFS/ZFSBootPartition
> 
> Scot
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