


Note down the SAS address in case something goes wrong and you need to reprogram the SAS address. sas2flash.efi -c 0 -list shows you details on the controller.sas2flash.efi -listall should show you your controller.UEFI boot your server off the flash drive.Rename the shell to BOOTX64.efi and place it into a directory named BOOT inside a directory named EFI on the USB flash drive.I had to use the v1 shell because my server would only show error messages (about failed assertions and files not found). Place these two files into a directory named P20 on the USB flash drive.
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However, they need to be flashed with a regular LSI firmware to disable their RAID capabilities in order to passthrough the drives directly to the OS. OEM version of the LSI SAS 9211-8i, such as the Dell H200, H310 or IBM M1015 are quite popular for use with FreeNAS.
