️ Note: The WebSockets service for live sync has been integrated in the main HTTP server, which means simpler proxy setups that don't require a separate rule to redirect WS traffic to port 3012. Please check the updated examples in the wiki. It's recommended to migrate to this new setup as using the old server on port 3012 is deprecated, won't receive new features and will be removed in the next release.Das mit den Namen der btrfs Subvolumes ist bekannt bei Timeshift. Im Readme steht dazu folgendes.
BTRFS volumes
BTRFS volumes must have an Ubuntu-type layout with @ and @home subvolumes. Other layouts are not supported. Systems having the @ subvolume and having /home on a non-BTRFS partition are also supported.
Text file busy / btrfs returned an error: 256 / Failed to create snapshot can occur if you have a Linux swapfile mounted within the @ or @home subvolumes which prevents snapshot from succeeding. Relocate the swapfile out of @ or *@home, for example into it's own subvolume like @swap.