ubi_check_volume(9)

💅 ubi_check_volume(9) — Kernel API Manual 💅

okay so bestie, this is the Kernel API Manual entry for ubi_check_volume(9), and I’m lowkey obsessed — it’s giving main character energy for static UBI volumes. ✨ no cap, it’s a tiny function with a very specific job, and it literally gives a static volume its own vibe check. 🫶

🌸 NAME 🌸

ubi_check_volume - check the contents of a static volume.

✨ SYNOPSIS ✨

int ubi_check_volume (struct ubi_device *ubi , int vol_id );

🫶 ARGUMENTS 🫶

• ubi — the UBI device description object. literally the object that describes the UBI device, bestie. 💖
• vol_id — the ID of the volume to check. yes, that volume. 🎀

💖 DESCRIPTION 💖

so this function checks if the static volume vol_id is corrupted by fully reading it and checking the data CRC. it’s giving “read the whole thing, then verify the data CRC” energy. 🔥

the return values are iconic and very specific:

• 0 — the volume is not corrupted. slay. ✨
• 1 — the volume is corrupted. not slay, but important. 😭
• a negative error code — something failed. read the error, bestie. 💀

dynamic volumes? they are not checked. 0 is returned immediately. periodt. 🫶

🔥 SEE ALSO 🔥

• Kernel file ./drivers/mtd/ubi/misc.c
• ubi_calc_data_len(9)
• ubi_update_reserved(9)
• ubi_calculate_reserved(9)
• ubi_check_pattern(9)

later bestie 💜 — source/version: ./drivers/mtd/ubi · date: October 2026