NTSTATUS FstubSetPartitionInformationEFI( IN PDISK_INFORMATION Disk, IN ULONG PartitionNumber, IN SET_PARTITION_INFORMATION_GPT* PartitionInfo ); Routine Description: Update the partition information for a specific EFI partition. The algorithm we use reads the entire partition table and writes it back again. This makes sense, because the entire table will have to be read in ANYWAY, since we have to checksum the table. NB: this algorithm assumes that the partition table hasn't changed since the time GetDriveLayout was called. Probably a safe assumption. Arguments: Disk - PartitionNumber - PartitionInfo - Return Values: NTSTATUS code.