Bcachefs: Difference between revisions
imported>Onny Add encryption example |
imported>Onny Add note on snapshots |
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# bcachefs unlock /dev/sda | # bcachefs unlock /dev/sda | ||
# mount -t bcachefs /dev/sda /mnt | # mount -t bcachefs /dev/sda /mnt | ||
</syntaxhighlight> | |||
Create a subvolume of a mounted bcachefs filesystem. The snapshot of the filesystem state is accessible in the directory <code>/mnt/snap1</code>. | |||
<syntaxhighlight lang="console"> | |||
# bcachefs subvolume snapshot /mnt /mnt/snap1 | |||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 09:56, 14 May 2023
Bcachefs is a next-generation CoW filesystem that aims to provide features from Btrfs and ZFS with a cleaner codebase, more stability, greater speed and a GPL-compatible license. It is built upon Bcache and is mainly developed by Kent Overstreet.
Installation
To enable filesystem support and availability of user-space utils, add following line to the system configuration
/etc/nixos/configuration.nix
boot.supportedFilesystems = [ "bcachefs" ];
Usage
Format and mount a signle device
# bcachefs format /dev/sda
# mount -t bcachefs /dev/sda /mnt
Format drive with encryption enabled, unlock and mount it afterwards
# bcachefs format --encrypt /dev/sda
# bcachefs unlock /dev/sda
# mount -t bcachefs /dev/sda /mnt
Create a subvolume of a mounted bcachefs filesystem. The snapshot of the filesystem state is accessible in the directory /mnt/snap1.
# bcachefs subvolume snapshot /mnt /mnt/snap1