UEFI Device Path manipulation
This program converts “Unified Extensible Firmware Interface”
(UEFI) Device Paths, as defined in the UEFI standard, to and from binary form.
Binary and textual forms are defined in Chapter 9 of the UEFI Specification.
- Formats a binary UEFI Device Path into its canonical UTF-8 textual form. A
binary Device Path can be no longer than 65536 bytes. The textual form
must fit into 65536 bytes. Multiple binary device paths may be
- Parses a UEFI Device Path UTF-8 specification and outputs the binary
Device Path form. Only one device path is parsed, even if there are
multiple present in the input. Leading white space is ignored. The
resulting binary Device Path can be no longer than 65536 bytes. Multiple
lines may be specified. Each one will be translated.
- Translate a Unix file path to an EFI Device Path. The output is the
textual representation of the EFI Device Path.
- Translate an EFI device path to a Unix file path. The input is the textual
representation of the EFI Device Path.
Appendix A of the UEFI specification has the format for GUIDs. All GUIDs
“Globally Unique Identifiers” have the format described in RFC
The Unified Extensible Firmware Interface Specification is available from
utility first appeared in