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Create GPT test /Home file

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GutPuncher 2023-11-25 04:38:39 -05:00
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/*
https://en.wikipedia.org/wiki/GUID_Partition_Table
GPT HEADER STRUCTURE:
(bytes, name:)
8 signature
4 revision #
4 header size little endian
4 crc32 of header
4 reserved zero
8 current LBA location of header copy
8 backup LBA location of header copy
8 first usable LBA for partitions (primary partition table last LBA + 1)
8 last usable LBA secondary partition table first LBA - 1
16 disk GUID mixed endian
8 starting LBA array of partition entires (usually 2 for compat)
4 number of partition entries in array
4 size of single partition entry (usually 0x80 or 128)
4 crc32 of partition entires array in little endian
?? reserved, zeroes to the end of the block
GPT PARTITIONS ENTRIES STRUCTURE:
16 partition Type GUID mixed endian
16 unique partition GUID mixed endian
8 first LBA little endian
8 last LBA inclusive usually odd
8 attribute flags
72 partition name 36 UTF-16LE code units
GPT Partition attributes:
(bit, details)
0 platform required by computer
1 efi firmware ignore content of this partition don't read from
2 legacy bios bootable (equiv to active flag for MBR)
3-47 reserved
48-63 defined & used by individual partition type
**/