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ReiserFS is a journaling filesystem for Linux licensed under the GPL-2 license and is the predecessor of Reiser4. ReiserFS was originally developed by Namesys and Hans Reiser, but is under maintenance by volunteers nowadays.



ReiserFS is scheduled for deprecation in kernel 5.18 and eventual removal in 2025[1]. Because of this, migration away from ReiserFS is encouraged and newly created file systems should be avoided.

Support for ReiserFS has to be enabled in the Kernel first.

KERNEL Enabling ReiserFS support
File systems  --->
   <*> Reiserfs support


Utilities for ReiserFS are available in sys-fs/reiserfsprogs package:

root #emerge --ask sys-fs/reiserfsprogs

See also

  • Ext4 — an open source disk filesystem and most recent version of the extended series of filesystems.
  • XFS — a high-performance journaling filesystem
  • ZFS — a next generation filesystem created by Matthew Ahrens and Jeff Bonwick.