$ RUN SYS$SYSTEM:EFI$CP
 EFI$CP> initialize sys$common:[sysmaint]sys$diagnostics.tmp -
   /device_alias=efidiag:/create/size=256000/contiguous -
   idiag /nolog
 EFI$CP> exit
 $ SET FILE/NOMOVE SYS$COMMON:[SYSMAINT]SYS$DIAGNOSTICS.TMP
 $ SET BOOTBLOCK SYS$SYSDEVICE:/I64