создать файловую систему btrfs (create a btrfs filesystem)
RUNTIME FEATURES
Features that are typically enabled on a mounted filesystem, eg.
by a mount option or by an ioctl. Some of them can be enabled
early, at mkfs time. This applies to features that need to be
enabled once and then the status is permanent, this does not
replace mount options.
quota
(kernel support since 3.4)
Enable quota support (qgroups). The qgroup accounting will be
consistent, can be used together with --rootdir. See also
btrfs-quota(8).
free-space-tree
(kernel support since 4.5)
Enable the free space tree (mount option space_cache=v2) for
persisting the free space cache.
