ubifs_read_master(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 ubifs_read_master — a Kernel API Manual moment 💅

okay so quick vibe check bestie: this page lives in the Kernel API Manual, it's called ubifs_read_master(9), and honestly? it's lowkey iconic. let's get into it 🎀

✨ NAME ✨

ubifs_read_master — read master node. that's it, that's the whole name, no notes 🫶

✨ SYNOPSIS ✨

int ubifs_read_master (struct ubifs_info *c );

like literally one function, one argument, returns an int. we love a minimal queen 👑

✨ ARGUMENTS ✨

  • c — the UBIFS file-system description object 💖 this is the whole context of the filesystem, the main character of the struct world, and it's the only thing you gotta hand over.

✨ DESCRIPTION ✨

so what does it actually do, you ask? ubifs_read_master finds and reads the master node during file-system mount. that's the whole job. it hunts down that master node and reads it. periodt ✨

and if the flash is empty? it creates a default master node as well. not me being surprised by this either — an empty flash still gets a master node, slay 🦋

return value time, because we care about the details:

  • returns zero in case of success — zero is the good number, the "we ate" number 👑
  • returns a negative error code in case of failure — that's the "something's giving wrong" number 😭

that's it! no cap. that's the entire behaviour, no hidden extras.

✨ SEE ALSO ✨

go read the source bestie, it's right there in the kernel file ./fs/ubifs/master.c 📁 and while you're there, these functions are all part of the same friend group:

the whole squad, fr fr 🫶

anyway that's the page!! it ships out of ./fs/ubifs and the date on this one is October 2026, so mark your calendar bestie 🌈💜 love u, go mount something safely 🧚‍♀️⭐

📦 where this page comes from