allanjude eeaf13194e Only call init_zfs_bootenv() when the system was booted with ZFS
Add a few other safeguards to ensure things do not break when the
boot device cannot be determined

Reported by:	flo
MFC after:	3 days
Sponsored by:	ScaleEngine Inc.
2016-01-09 00:54:08 +00:00
..
2015-11-20 18:10:02 +00:00