Hi, according to 'man 8 raidctl', ``Multi-layered RAID devices (such as a RAID 0 set made up of RAID 1 sets) are not supported as root devices or auto-configurable devices at this point.'' May the patch to init discussed in following thread help with current situation? http://mail-index.netbsd.org/tech-userlevel/2005/05/15/0000.html r.