Where should a system manufacturer place files such as platform diagnostics or other value-added files?
The preferred option is for system manufacturers to place value-add contents in an OEM-specific partition. Just like MBR OEM partitions, the contents of GPT OEM (or other unrecognized) partitions are not exposed (given drive letters or returned in volume lists). Users are warned that deleting the partition can cause the system to fail to operate. An OEM-specific partition should be placed before the MSR and after any ESP on the disk. Although not architectural, this placement has the same benefits as placing the ESP first. For example, it is also impossible to span volumes when an OEM-specific partition is logically between the two data partitions you are attempting to span.
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- Where should a system manufacturer place files such as platform diagnostics or other value-added files?
