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 no…
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. Please use these sites when accessing information related to NILFS.
Latest News
- NILFS utilities 2.2.13 was released. Major build updates include support for UsrMerge and Bin-Sbin merge layouts, allowing both automatic detection and manual specification. It also adds automatic detection for architecture-specific library paths. This release also reorganizes the README documentation to reflect modern build environments and fixes an environment-dependent build warning. For details, please see nilfs-utils 2.2.13 release (or commits). – Dec 28, 2025 JST.
- NILFS utilities 2.2.12 was released. A minor release that fixes an issue where the chcp command would crash when an invalid argument was specified, and fixes one warning that was output in the latest build environment. For details, please see nilfs-utils 2.2.12 release (or commits). – Sep 22, 2025 JST.
- Published nilfs2-kmod10, a standalone kernel module for CentOS Stream 10. Please note that this kernel module release is experimental, and depending on future changes to the distro kernel, there is a high possibility that problems may arise, such as the inability to build or a loss of OS stability. For details, please see nilfs2-kmod10 releases (or ChangeLog, commits). – Aug 21, 2024 JST.