wipefs — wipe a filesystem signature from a device
wipefs [−ahnp] [ −o offset ] device
wipefs
allows to erase filesystem or raid signatures (magic strings)
from the device to
make the device invisible for libblkid. wipefs does not erase the
whole filesystem or any other data from the device. When used
without options -a or -o, it lists all visible filesystems
and offsets of their signatures.
−a,
−−allErase all available signatures.
−h,
−−helpPrint help and exit.
−n,
−−no−actCauses everything to be done except for the write() call.
−o,
−−offset offsetSpecifies location (in bytes) of the signature which should be erased from the device. The offset number may include a "0x" prefix, and then the number will be read as a hex value. It is possible to specify multiple -o options.
−p,
−−parsablePrint out in parsable instead of printable format. Encode all potentially unsafe characters of a string to the corresponding hex value prefixed by '\x'.