Best to use the DOS or UEFI tools to do any crossflashing and/or other more advanced options, e.g., for some reason erasing the BIOS doesn't work with the Linux version, but if you just need to update firmware it can be easily done with Unraid.   Download the MSDOS firmware package form Broadcom's support site (https://www.broadcom.com/support/download-search), for example for the 9300-8i it currently is this one: 9300_8i_Package_P16_IR_IT_FW_BIOS_for_MSDOS_Windows Note: Downloa