ディスク内のパーティションを消す

使い方

wipefs -a /dev/sdb

# wipefs  -h

Usage:
 wipefs [options] <device>

Wipe signatures from a device.

Options:
 -a, --all           wipe all magic strings (BE CAREFUL!)
 -b, --backup        create a signature backup in $HOME
 -f, --force         force erasure
 -i, --noheadings    don't print headings
 -J, --json          use JSON output format
 -n, --no-act        do everything except the actual write() call
 -o, --offset <num>  offset to erase, in bytes
 -O, --output <list> COLUMNS to display (see below)
 -p, --parsable      print out in parsable instead of printable format
 -q, --quiet         suppress output messages
 -t, --types <list>  limit the set of filesystem, RAIDs or partition tables
 -h, --help          display this help
 -V, --version       display version