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Function RTFCreateBackupGPT

RTFCreateBackupGPT creates a backup GPT to be written to the end of a disk:

int RTFCreateBackupGPT(const void * GPT, 
                       void       * BackupGPT, 
                       UINT         BackupGPTBufferSize, 
                       UINT         SectorSize)

RTFCreateBackupGPT does not access any physical disk.

Parameters

GPT

A pointer to a buffer holding the GPT. This parameter should have been passed to RTFCreateGPTPartition before.

BackupGPT

A pointer to a buffer holding the backup GPT to be created. The buffer pointed to by this parameter should have at least 1 sector plus 16384 bytes.

GPTBufferSize

The size of the buffer pointed to by parameter BackupGPT.

SectorSize

Bytes per sector of the disk. This value must be at least 512 and a power of two.

return value

If the function succeeds, the return value is RTF_NO_ERROR. If the function fails, the return value is a negative error code.

Demo program PartDemo shows how this function is used and how the backup GPT is written to disk.

Function RTFSplitGPTPartition

Function RTFCreateBootSector