644: The People's Filesystem
7 December 2025
Kent Overstreet joins us for a full update on bcachefs. What's new, what's next, and the surprising upside of getting kicked out of the kernel.
Guests
Sponsors
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Episode Links
- 💥 Gets Sats Quick and Easy with Strike
- 📻 LINUX Unplugged on Fountain.FM
- LUP’s Great Holiday Homelab Form
- LUP’s Great Holiday Homelab Old Fart Form (markdown)
- bcachefs 1.33.0
- Bcachefs Ready With Its Reconcile Feature As Biggest Change In Two Years — “Biggest new feature in the past ~2 years, I believe. The user facing stuff may be short and sweet - but so much going on under the hood to make all this smooth and polished.”
- Kent Overstreet - Patreon
- bcachefs — A copy-on-write (COW) file system for Linux first announced by Kent Overstreet in 2015. It is intended to compete with the modern features of ZFS or Btrfs.
- LINUX Unplugged 545: 3,062 Days Later — Kent Overstreet, the creator of bcachefs, helps us understand where his new filesystem fits, what it’s like to upstream a new filesystem, and how they’ve solved the RAID write hole.
- Git or not a Git man page?
- proxmox-nixos: The Proxmox Hypervisor, on NixOS
- Pick: Dotfiles Installer — Install dotfiles easy, fast and secure. Or provide an installation application for your dotfiles.
- ML4W Dotfiles Installer Wiki
- dotfiles-installer: GitHub
- Pick: SSH-Studio — Easy, GUI SSH config editor and validator built with Python, GTK 4 and libadwaita.
- LubeLogger, Vehicle Maintenance and Fuel Mileage Tracker, slips into December with some banging new features
Sponsors
Secure every sign-in for every app on every device.
Meet Managed Nebula from Defined Networking. A decentralized VPN built on the open-source Nebula platform that we love.
Discover a Better Way to Pay for Healthcare with Crowdfunded Memberships. Join CrowdHealth to get started today for $99 for your first three months using UNPLUGGED.
A powerful, easy operating system for servers and storage. Maximize your hardware with unmatched flexibility.