This thing f*cked my disk beyond repair. Booted onto 200811rc1b iso image (200805 wouldn't work due to zfs version incompatibility), tried zpool import, zpool scrub, but the disk is still unbootable with Error 16.
How the hell can this happen when a simple 'pkg image-update' halts with an error. All my data gone. -- This message posted from opensolaris.org