fsmUnknownFSMMessageErr - unknown message passed to FSM

fsmNoAlternateStackErr - no alternate stack for HFS CI

fsmBadFSDVersionErr - FSM version incompatible with FSD

fsmDuplicateFSIDErr - FSID already exists on InstallFS

fsmBadFSDLenErr - FSD size incompatible with current FSM vers

fsmBadFFSNameErr - Name length not 1 <= length <= 31

fsmBusyFFSErr - File system is busy, cannot be removed

fsmFFSNotFoundErr - Foreign File system does not exist - new Pack2 could return this error too