NILFS-TUNE(8)

📦
version 2.3.1 · 2 versions
, in alpine 3.24, arch rolling, nixpkgs unstable

💖 NILFS-TUNE — the manual page, but make it cute 💖

okay bestie, welcome to nilfs-tune(8), a System Manager's Manual situation ✨

🌸 NAME 🌸

nilfs-tune — adjust tunable file system parameters on NILFS file system. yes queen, we're tuning the filesystem 💅

🎀 SYNOPSIS 🎀

nilfs-tune [options] device

🦋 DESCRIPTION 🦋

nilfs-tune is a utility to modify tunable file system parameters on NILFS2 file system in device. it's giving "let me tweak ur vibes" but for a whole filesystem, fr fr 🔥

this command is valid for inactive NILFS2 file systems. no cap.

😭 Modifying active mounts may cause severe damage. like, main character energy gone wrong. please don't. 🙈

✨ OPTIONS ✨

  • -f — Force to modify even if the specified file system is mounted. it's the "i know what i'm doing" flag. bold of u, but okay 🫶
  • -i interval — Set the commit interval of segment. literally just tell it how often to commit 🎀
  • -m block-max — Set the threshold of the data amount of the segment construction. the block-max of it all 💜
  • -l — List the contents of the file system superblock, including the current values of the parameters that can be set via this program. the "show me everything" option, we love a transparent king 👑
  • -L volume-label — Set the volume label of the file system. NILFS2 file system labels can be at most 80 bytes long. If volume-label is longer than 80 bytes, nilfs-tune will truncate it. the volume label can be used by mount(8) and /etc/fstab(5) (and possibly others) by specifying LABEL=volume-label instead of a block special device name like /dev/sda5. so u can stop memorizing /dev/sda5 like it's a phone number 💅
  • -O [^]feature[,...] — Set or clear the indicated filesystem features (options) in the filesystem. More than one filesystem feature can be cleared or set by separating features with commas. Filesystem features prefixed with a caret character ('^') will be cleared in the filesystem's superblock; filesystem features without a prefix character will be added to the filesystem. it's giving "toggle switch but make it dramatic" ✨

The following filesystem feature can be set or cleared using nilfs-tune:

  • block_count — Enable block count per checkpoint. After setting this option, fsck should be run on the filesystem to make the counts right, but no fsck tool is available yet, sorry. 😭 yeah bestie they said sorry themselves, iconic honesty tbh 🍓
  • -U UUID — Set the universally unique identifier (UUID) of the file system to UUID. The format of the UUID is a series of hex digits separated by hyphens, like this: "c1b9d5a2-f162-11cf-9ece-0020afc76f16". so glamorous, so unique, so u 💜
  • -h — Display help message and exit. the "i'm lost bestie" button 🌈
  • -V — Display version and exit. quick vibe check on what u got installed ⭐

👑 AUTHOR 👑

Jiro SEKIBA <jir@unicus.jp> — the icon who made this 🫶

🌈 AVAILABILITY 🌈

nilfs-tune is part of the nilfs-utils package and is available from https://nilfs.sourceforge.io. go get it, bestie 💖

🔥 SEE ALSO 🔥

nilfs(8), lscp(1), chcp(8), mkcp(8), rmcp(8).

and that's the whole page!! mwah 💖 this was nilfs-utils version 2.3, dated Jan 2026, and it's the NILFS-TUNE(8) manual. periodt. 🎀✨

📦 where this page comes from