AlmaLinux 10.1 Adds Native Btrfs Filesystem Support

posted by Rianne Schestowitz on Oct 22, 2025,
updated Nov 25, 2025

Quoting: AlmaLinux 10.1 Adds Native Btrfs Filesystem Support —

The upcoming AlmaLinux 10.1 release will introduce native Btrfs support, a notable addition to the distribution’s storage capabilities. Btrfs has already been available in AlmaLinux OS Kitten since early September, and with version 10.1, it’s becoming part of the mainline experience.

Btrfs is a modern Copy-on-Write (CoW) filesystem that offers advanced features and strong data protection. It provides snapshotting, built-in volume management, checksumming for data and metadata, transparent compression, and efficient copying through reflinks.

With this update, once released, users will be able to install AlmaLinux 10.1 using Btrfs right from the start. During installation, selecting custom partitioning lets you choose a Btrfs partitioning scheme instead of the traditional XFS + LVM configuration. Once installed, AlmaLinux will run on a Btrfs volume, unlocking support for snapshots, subvolumes, and other advanced filesystem features.

Read on

Update

Also in The Register:

• AlmaLinux gives Btrfs a home after Red Hat kicked it out

  AlmaLinux is to support the Btrfs file system in version 10.1 of its eponymous RHELative operating system.

  While Red Hat deprecated Btrfs from Red Hat Enterprise Linux (RHEL) in 2017, the technology has found favor elsewhere. It can be found in SUSE, for example, and was recently an indirect participant in yet another Linux drama.

  Although Red Hat might not be keen on Btrfs, which was originally developed at Oracle to harden Linux's storage capabilities, AlmaLinux has embraced the technology and has now released the beta of version 10.1.

  "Btrfs is a modern Copy-on-Write (CoW) file system implementing advanced features while also focusing on fault tolerance, repair and easy administration. Among other things, it provides snapshotting, built-in volume management, checksumming for data and metadata, transparent compression and efficient copying via reflinks," wrote Davide Cavalca, a production engineer for the Linux userspace at Meta.

  "It is now possible to install AlmaLinux OS with a Btrfs file system from the very beginning," he wrote. "Initial enablement was scoped to the installer and storage management stack, and broader support within the AlmaLinux software collection for Btrfs features is forthcoming."

Neowin:

• AlmaLinux 10.1 launches with Btrfs filesystem support

  AlmaLinux 10.1 is out now, bringing with it the Btrfs filesystem as an optional choice during installation. Btrfs is good for those who want modern filesystem features.

LWN:

• Btrfs support coming to AlmaLinux 10.1

  The AlmaLinux project has announced that the upcoming 10.1 release will include support for Btrfs: [...]