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The common mkfs program to format a device with Btrfs. == Usage == <pre>mkfs.btrfs [-A <offset>] [-b <size>] [-l <size>] [-n <size>] [-L <label>] [-s <size>] [-m raid0|raid1|raid10|single] [-d raid0|raid1|raid10|single] <device></pre> === Description of parameters === * "alloc-start" or "-A": At what offset to start the fs. * "byte-count" or "-b": Size of the filesystem in bytes. * "leafsize" or "-l": Size of the leaves, defaults to pagesize. * "label" or "-L": Set a label. * "nodesize" or "-n": Size of the nodes, defaults to pagesize. * "sectorsize" or "-s": Size of the sectors, defaults to 4KiB. * "metadata" or "-m": Metadats profile, raid0, raid1, raid10 or single * "data" or "-d": Data profile, values like metadata. And after the options one or more devices. [[Category:Documentation]]

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