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Btrfs subvolume questions

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linux-howto

http://unix.stackexchange.com – Just a few questions about Btrfs: Do I have to mount a Btrfs filesystem before creating subvolumes on it? Can I easily convert an existing directory into a subvolume? (i.e. if I want to make "/home" a separate subvolume can I just go mk_btrfs_subfolder /home (or whatever the command is), instead of having to make a new empty subvolume and copying everything over? The commands to do the above would be good but not necessary, just yes/no will be fine and I can Google how. (HowTos)