Provided by: btrfs-tools_0.19+20100601-3ubuntu3_amd64 bug

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 filesystem.

       -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)