Welcome to NILFS

NILFS is a log-structured file system supporting versioning of the entire file system and continuous snapshotting, which allows users to even restore files mistakenly overwritten or destroyed just a few seconds ago.

NILFS was developed by NTT Laboratories and published as an open-source software under GPL license, and now available as a part of Linux kernel.

This site provides information and resources related to the NILFS filesystem.

*** Fake site warning ***

''www.nilfs.org'' has been reopened as a fake site by a third party after we abandoned the domain in September 2014. The fake site defaces the original content, leading visitors to unrelated websites, so please be careful not to go to the site mistakenly. NILFS community and NTT are absolutely not related to this fake site.

The official NILFS website is nilfs.sourceforge.io or nilfs.osdn.jp (mirror site). Please use these sites when accessing information related to NILFS.

Latest News

  • NILFS utilities 2.2.9 was released. A maintenance release that includes fixes for build issues in recent environments. Fix issues with Autoconf-2.70 and later, warnings with gcc-8, etc.
    -- Jun 20, 2022 JST.
  • NILFS utilities 2.2.8 was released. A maintenance release with some fixes. Fix some build issues and minor bugs in mkfs.nilfs2.
    -- Aug 20, 2019 JST.
  • nilfs2-kmod7 version 1.1.2 was released. Fix a race condition bug that causes file system corruption. For details, please see ChangeLog file or commit logs.
    -- Nov 18, 2017 JST.

Old news

  • follow NILFS in RSS
  • follow NILFS in feedly
  • follow NILFS in inoReader