ubi_start_update(9)

🦋 NAME 🦋

okay so bestie, this is ubi_start_update — it starts a volume update, that's the whole vibe 💅

Manual name is ubi_start_update(9) btw, in case you were wondering, and yes it's a Kernel API Manual page, very official, very demure ✨

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🎀 SYNOPSIS 🎀

int ubi_start_update (struct ubi_device *ubi , struct ubi_volume *vol ,
long long bytes );

literally the whole signature, character for character, no cap 🫶

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🌸 ARGUMENTS 🌸

• ubi — the UBI device description object, like the main character of this whole operation 👑
• vol — the volume description object, i.e. which volume we're updating, she's the one getting the glow-up 💖
• bytes — the update bytes, how much data is going in, the numbers bestie 🔢

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✨ DESCRIPTION ✨

So this function starts the volume update operation. That's it, that's the job 🎯

But here's the plot twist: if bytes is zero, the volume is just wiped out 💀 like completely, no update, just poof, gone, bye 👋 not me warning you to double-check that value fr fr

Returns zero in case of success and a negative error code in case of failure. So yeah — if you get a negative number back, that's your vibe check failing, go read your error handling 😭

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/mtd/ubi/upd.c
• set_update_marker(9)
• clear_update_marker(9)
• ubi_start_leb_change(9)
• write_leb(9)
• ubi_more_update_data(9)
• ubi_more_leb_change_data(9)

all the siblings, the whole friend group, go say hi 🧚💜

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ok that's the page!! 🍓 sourced from ./drivers/mtd/ubi, dated October 2026, and it's ubi_start_update(9) — mwah, slay, periodt 💅🌈⭐