alloc_read_gpt_header(9)

✨ NAME ✨

alloc_read_gpt_header — this is the lil' function that grabs a GPT header for you and reads it straight off the disk, bestie 💖 (it's living over in the Kernel API Manual, iykyk)

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🌸 SYNOPSIS 🌸

gpt_header * alloc_read_gpt_header (struct parsed_partitions *state ,
u64 lba );

Like, that's the whole vibe check right there 👑

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🎀 ARGUMENTS 🎀

• state — the disk's parsed partitions 🫶 (yes, the struct parsed_partitions * one)
• lba — the Logical Block Address of the partition table, aka where on the disk we're looking 🔥

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🦋 DESCRIPTION 🦋

okay so: on success you get the GPT header back, and on error you get NULL. No in-between, no maybes 💅

It allocates and fills a GPT header starting at … (not me, the manpage literally drops the placeholder here 😭) from state->disk.

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⭐ NOTE ⭐

🚨 reminder bestie: remember to free the gpt when you're finished with it. No leaking, that's not the vibe. periodt. 💀

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🌈 SEE ALSO 🌈

Kernel file ./block/partitions/efi.c, and the whole friend group:

• efi_crc32(9)
• last_lba(9)
• is_pmbr_valid(9)
• read_lba(9)
• alloc_read_gpt_entries(9)
• is_gpt_valid(9)
• is_pte_valid(9)
• compare_gpts(9)
• find_valid_gpt(9)
• utf16_le_to_7bit(9)
• efi_partition(9)

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mwah 💜 this lil' page came from ./block/partitions and it's dated October 2026 — screenshot it, cite it, put it on your fridge, it's iconic 👑✨