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# SPDX-License-Identifier: GPL-2.0+
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Glossary:
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- UUID -(Universally Unique Identifier)
This document describes the GPT partition table format and usage of
the gpt command in u-boot.
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UUID introduction:
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LBA -1 |Secondary GPT Header |
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For a legacy reasons, GPT's LBA 0 sector has a MBR structure. It is called
"protective MBR".
Its first partition entry ID has 0xEE value, and disk software, which is not
TOTAL: 512 B
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IMPORTANT:
GPT headers and partition entries are protected by CRC32 (the POSIX CRC32).
Observe, how Secondary GPT is placed in the memory. It is NOT a mirror reflect
of the Primary.
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Partition Entry Format:
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Offset Size Description
Bit 62 - Hidden
Bit 63 - Not mount
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Creating GPT partitions in U-Boot:
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2. From u-boot prompt type:
gpt write mmc 0 $partitions
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Useful info:
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