CD9660(4)

📦 version 15.1, in freebsd 15.1, nixpkgs unstable

💿 CD9660(4) — ISO-9660 file system

okay bestie, so this is the manual page for cd9660, and it lives in the Kernel Interfaces Manual (that's the section-4 crew, kernel drivers only, very exclusive 💅). Like the header says: CD9660(4) — Kernel Interfaces Manual. Let's get into it, this one's short and sweet and honestly kind of iconic for a filesystem driver.

✨ NAME ✨

cd9660 — the ISO-9660 file system. yes that's the one on your CDs, the disc you burned in 2004 that somehow still works, we love a legacy queen 👑

🫶 SYNOPSIS 🫶

okay so there are two ways to get this driver into your life, and both are valid, no cap.

Option A — link it into the kernel:

options CD9660

Option B — load it as a module at boot time. put this line in loader.conf(5):

cd9660_load="YES"

pick your fighter, both slay 🎀

💖 DESCRIPTION 💖

the cd9660 driver is literally what lets the FreeBSD kernel access the cd9660 file system. that's it. that's the whole personality. it's giving "small but essential," it's giving "you'd miss me if I were gone" 😭

🌸 EXAMPLES 🌸

bestie, you want to mount a cd9660 volume that lives on /dev/cd0? say less — it's a one-liner:

mount -t cd9660 /dev/cd0 /mnt

-t cd9660 says "hey, this is the file system type," /dev/cd0 is your device, /mnt is where it lands. chef's kiss, ate, no notes 🔥

🦋 SEE ALSO 🦋

the whole friend group, in order, exactly as listed:

iykyk, go read all of them, they're like the group chat 💬

👑 HISTORY 👑

the cd9660 driver first appeared in 4.4BSD-Lite. yeah. elder. a true main character from the jump, been here longer than most of us, respect the origin story ⭐

🎀 AUTHORS 🎀

okay so let's give credit where it's due, periodt:

  • the cd9660 kernel implementation was originally written by Pace Willisson <pace@blitz.com> and Atsushi Murai <amurai@spec.co.jp>
  • this manual page was written by Enji Cooper <ngie@FreeBSD.org>

absolute legends, one and all, we stan 🫶

ngl bestie, the whole driver is basically "load me, mount me, done" — but do it right, use the exact flags, don't freestyle on mount unless you know what you're doing 🙈

and that's the page, diva 💜 — this one comes courtesy of Debian and is dated January 18, 2025. drink some water, unmount your filesystems cleanly, and go live your best ISO-9660 life 🌈✨

📦 where this page comes from