MKFS.BTRFS(8)						      System Manager's Manual						     MKFS.BTRFS(8)

NAME
mkfs.btrfs - create an btrfs filesystem SYNOPSIS
mkfs.btrfs [ -A alloc-start ] [ -b byte-count ] [ -d data-profile ] [ -l leafsize ] [ -L label ] [ -m metadata profile ] [ -n nodesize ] [ -s sectorsize ] [ -h ] [ -V ] device [ device ... ] DESCRIPTION
mkfs.btrfs is used to create an btrfs filesystem (usually in a disk partition, or an array of disk partitions). device is the special file corresponding to the device (e.g /dev/sdXX ). If multiple devices are specified, btrfs is created spanning across the specified devices. OPTIONS
-A, --alloc-start offset Specify the offset from the start of the device to start the btrfs filesystem. The default value is zero, or the start of the device. -b, --byte-count size Specify the size of the resultant filesystem. If this option is not used, mkfs.btrfs uses all the available storage for the filesys- tem. -d, --data type Specify how the data must be spanned across the devices specified. Valid values are raid0, raid1, raid10 or single. -l, --leafsize size Specify the leaf size, the least data item in which btrfs stores data. The default value is the page size. -L, --label name Specify a label for the filesystem. -m, --metadata profile Specify how metadata must be spanned across the devices specified. Valid values are raid0, raid1, raid10 or single. -n, --nodesize size Specify the nodesize. By default the value is set to the pagesize. -s, --sectorsize size Specify the sectorsize, the minimum block allocation. -V, --version Print the mkfs.btrfs version and exit. AVAILABILITY
mkfs.btrfs is part of btrfs-progs. Btrfs is currently under heavy development, and not suitable for any uses other than benchmarking and review. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details. SEE ALSO
btrfsck(8) MKFS.BTRFS(8)

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