Enable hardware-RAID on HP Smart Array P212 with hardware RAID disabled

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http://serverfault.com – I bought 4 HP P212 SAS Cards from eBay with generate this message @ POST: ============================================================================= BOOTLEG FIRMWARE v4.47 hardware RAID support is disabled via controller NVRAM configuration settings ============================================================================= As it seems the cards are set in IT-Mode as attached disks are directly accessible (most likely for a ZFS config) I can upgrade the firmware but this does not completely clear NVRAM so the hardware RAID stays disabled Is there a way to completely clear NVRAM (wi (HowTos)