硬盘BPB 格式

偏移Offset大小FAT16偏移Offset大小FAT32偏移Offset大小NTFS03JMP instruction03JMP instruction03JMP instruction38OEM38OEM38File system IDBIOS 参数区块0B2Bytes per sector0B2Bytes per sector0B2Bytes per sector0D1Sectors per cluster0D1Sectors per cluster0D1Sectors per cluster0E2Reserved sectors0E2Reserved sectors0E2Reserved sectors101Number of FATs101Number of FATs103(always zero)112Root entries(512)112Root entries (unused)132Sectors (under 32 MB)132Sectors (on small volumes)132(unused)151Media descriptor (hex)151Media descriptor (hex)151Media descriptor162Sectors per FAT162Sectors per FAT (small vol.)162(unused)182Sectors per track182Sectors per track182Sectors per track1A2Heads1A2Heads1A2Heads1C4Hidden sectors1C4Hidden sectors1C4Hidden sectors204Sectors (over 32 MB)204Sectors (on large volumes)204(unused)FAT32扩展区块241BIOS drive (hex, HD=8x)244Sectors per FAT244(always 80 00 80 00)251(Unused)261Ext. boot signature (29h)274Volume serial number (hex)282Extended flags288Total sectors/FAT mirroring disabled?2A2Version (usually 0)2B11Volume label2C4Root dir 1st cluster302FSInfo sector308Start C# $MFT322Backup boot sector3412(Reserved)368File system388Start C# $MFTMirr3E??DBR　401BIOS drive (hex, HD=8x)401FILE record size indicator411(Unused)413(unused)421Ext. boot signature (29h)434Volume serial number (hex)441INDX buffer size indicator453(unused)4711Volume label48832-bit serial number (hex)/32-bit SN (hex, reversed)/64-bit serial number (hex)504Checksum528File system54??DBR5A??DBR　1FE2Signature (55 AA)1FE2Signature (55 AA)1FE2Signature (55 AA)