Removing the Diagnostic Partition File (OpenVMS
I64 Only)
To remove the diagnostic partition on an OpenVMS I64 system
disk, delete the file SYS$MAINTENANCE:SYS$DIAGNOSTICS.SYS and then
reset the boot block. Reset the boot block by invoking the SET BOOTBLOCK
command at the DCL prompt, as in the following example, where target-disk is the device on which your target system disk is
mounted:
$ SET BOOTBLOCK /PRESERVE=SIGNATURE target-disk:[VMS$COMMON.SYS$LDR]SYS$EFI.SYS
The /PRESERVE=SIGNATURE qualifier causes the existing
Globally Unique Identification (GUID) to be preserved. If you want
to reset the GUID, do not use this qualifier.