# emerge -pv spl zfs

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ~] sys-kernel/spl-0.6.2  USE="-custom-cflags -debug -debug-log" 0 kB
[ebuild   R   ~] sys-fs/zfs-0.6.2  USE="bash-completion -custom-cflags (-kernel-builtin) -rootfs (-selinux) -static-libs -test-suite" PYTHON_SINGLE_TARGET="python2_7 -python2_6" PYTHON_TARGETS="python2_7 -python2_6" 0 kB

# zpool import
   pool: z1media
     id: 1015455473757624604
  state: FAULTED
 status: One or more devices contains corrupted data.
 action: The pool cannot be imported due to damaged devices or data.
    The pool may be active on another system, but can be imported using
    the '-f' flag.
   see: http://zfsonlinux.org/msg/ZFS-8000-5E
 config:

    z1media     FAULTED  corrupted data
      sda4      UNAVAIL  corrupted data

   pool: z0media
     id: 4969311558348820268
  state: FAULTED
 status: One or more devices contains corrupted data.
 action: The pool cannot be imported due to damaged devices or data.
    The pool may be active on another system, but can be imported using
    the '-f' flag.
   see: http://zfsonlinux.org/msg/ZFS-8000-5E
 config:

    z0media     FAULTED  corrupted data
      sdb8      UNAVAIL  corrupted data

# zpool import -f z1media
cannot import 'z1media': one or more devices is currently unavailable

# emerge -av spl zfs

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild     UD~] sys-kernel/spl-0.6.1-r3 [0.6.2] USE="-custom-cflags -debug -debug-log" 0 kB
[ebuild     UD~] sys-fs/zfs-kmod-0.6.1-r2 [0.6.2] USE="-custom-cflags -debug -rootfs" 0 kB
[ebuild     UD~] sys-fs/zfs-0.6.1-r4 [0.6.2] USE="bash-completion -custom-cflags (-kernel-builtin) -rootfs (-selinux) -static-libs -test-suite" PYTHON_SINGLE_TARGET="(-python2_6%) (-python2_7%*)" PYTHON_TARGETS="(-python2_6%) (-python2_7%*)" 0 kB