aerosoul94/X360Partitions.md

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XBOX 360 Partition Documentation

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X360Partitions.md

1746

Dev

Partition Name	Start (in sectors)	Length (NSectors)	Notes
PhysicalDisk	0	`DiskNSectors`	Covers entire drive
Partition0	0	`DiskNSectors`	Covers entire drive
PixDump	0x400	`(DiskNSectors / 8) & 0x1fffff80`	`DiskSize / PageSize`?
DumpPartition	`PixDumpStart+ PixDumpNSectors`	0x107180	After PixDump
SystemPartition	`DumpPartitionStart + DumpPartitionNSectors`	0x10000	After DumpPartition
Partition1	`SystemPartitionStart + SystemPartitionNSectors`	`AltFlashStart - (SystemPartitionStart + SystemPartitionNSectors)`	After SystemPartition
AltFlash	`Cache1Start - 0x20000`	0x20000	Before Cache1
Cache1	`Cache0Start - 0x400000`	0x400000	Before Cache0
Cache0	`DiskNSectors - 0x400000`	0x400000	At the end of the drive

1838

Dev

The only change appears to be the SystemPartition length from 0x10000 to 0x80000.

Partition Name	Start (in sectors)	Length (NSectors)	Notes
PhysicalDisk	0	`DiskNSectors`	Covers entire drive
Partition0	0	`DiskNSectors`	Covers entire drive
PixDump	0x400	`(DiskNSectors / 8) & 0x1fffff80`	`DiskSize / PageSize`?
DumpPartition	`PixDumpStart + PixDumpNSectors`	0x107180	After PixDump
SystemPartition	`DumpPartitionStart + DumpPartitionNSectors`	0x80000	After DumpPartition (Length changed since 1640!)
Partition1	`SystemPartitionStart + SystemPartitionNSectors`	`AltFlashStart - (SystemPartitionStart + SystemPartitionNSectors)`	After SystemPartition
AltFlash	`Cache1Start - 0x20000`	0x20000	Before Cache1
Cache1	`Cache0Start - 0x400000`	0x400000	Before Cache0
Cache0	`DiskNSectors - 0x400000`	0x400000	At the end of the drive

1888

Retail

Partition Name	Start (in sectors)	Length (NSectors)	Notes
PhysicalDisk	0	`DiskNSectors`	Covers entire drive
Partition0	0	`DiskNSectors`	Covers entire drive
Cache0	0x400	0x400000	First partition.
Cache1	0x400400	0x400000	After Cache0
DumpPartition	0x800400	0x107180	After Cache
SystemPartition	0x907580	0x80000	After DumpPartition
Partition1	0x987580	`DiskNSectors - (SystemPartitionStart + SystemPartitionNSectors)`	After SystemPartition

21256.18

Retail

Partition Name	Start (in sectors)	Length (NSectors)	Notes
PhysicalDisk	0	`DiskNSectors`	Covers entire drive
Partition0	0	`DiskNSectors`	Covers entire drive
WindowsPartition	0	`DiskNSectors`	Covers entire drive
Cache0	0x400	0x400000	First partition.
Cache1	0x400400	0x400000	After Cache0
DumpPartition	0x800400	0x107180	After Cache
SystemURLCachePartition	0x800400	0x30000	Within DumpPartition
TitleURLCachePartition	0x830400	0x10000	Within DumpPartition
SystemExtPartition	0x840400	0x67180	Within DumpPartition
SystemAuxPartition	0x8A7580	0x40000	Within DumpPartitition
SystemPartition	0x907580	0x80000	After DumpPartition
Partition1	0x987580	`DiskNSectors - (SystemPartitionStart + SystemPartitionNSectors)`	After SystemPartition

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