ZFS boot fails with two pools

[Berczi Gabor]

Greets,

For some reason FreeBSD can't boot automatically:

ZFS: i/o error - all block copies unavailable
ZFS: can't read MOS object directory
Can't find root filesystem - giving up
ZFS: unexpected object set type 0
ZFS: unexpected object set type 0

FreeBSD/x86 boot
Default: data:/boot/kernel/kernel
boot:
ZFS: unexpected object set type 0

FreeBSD/x86 boot
Default: data:/boot/kernel/kernel
boot:

I have two pools, pool2 which is a mirrored zpool, and data being a raid-z pool. Note how the default should be "pool2:/boot/zfsloader". How can I fix this?

Thx.