Overwrite MBR:

dd if=/dev/zero of=/dev/sd$i bs=512 count=1

Clear GPT partition table by setting “msdos” as the table and label:

parted /dev/sd$i mktable

parted /dev/sd$i mklabel

Create msdos primary partition using entire drive and set partition type of Linux software RAID :

fdisk /dev/sd$i

n, p, , , t, fd, w

Reboot!

Perform remaining steps in openfiler interface.