wipefs


SYNOPSIS
       wipefs [-ahnpV] [-o offset] device

DESCRIPTION
       wipefs can erase filesystem or raid signatures (magic strings) from the
       specified device to make the filesystem invisible for libblkid.  wipefs
       does  not  erase  the  filesystem  itself  nor  any other data from the
       device.  When used without options -a  or  -o,  it  lists  all  visible
       filesystems and the offsets of their signatures.

OPTIONS
       -a, --all
              Erase all available signatures.

       -h, --help
              Print help and exit.

       -n, --no-act
              Causes everything to be done except for the write() call.

       -o, --offset offset
              Specify the location (in bytes) of the signature which should be
              erased from the device.  The offset number may  include  a  "0x"
              prefix;  then the number will be interpreted as a hex value.  It
              is possible to specify multiple -o options.

              The offset argument may be followed  by  binary  (2^N)  suffixes
              KiB,  MiB, GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K"
              has the same meaning as "KiB") or decimal  (10^N)  suffixes  KB,
              MB, GB, PB and EB.

       -p, --parsable
              Print  out  in parsable instead of printable format.  Encode all
              potentially unsafe characters of a string to  the  corresponding
              hex value prefixed by '\x'.

       -V, --version
              Output version information and exit.

AUTHOR
       Karel Zak <kzak@redhat.com>.

AVAILABILITY
       The  wipefs  command is part of the util-linux package and is available
       from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

SEE ALSO
       blkid(8) findfs(8)




util-linux                       October 2009                        WIPEFS(8)
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