make_lvm_partitions

#!/bin/bash
# make_lvm_partitions
# This makes a lvm type partition on each disk you define. you can use that partition than as a pv.
# I use a lvm type partition rather than a raw device because it is better noticeable when running fdisk -l.

# Copyright (C) 2014-2015 Alexander Swen <alex@swen.nu>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Alexander Swen
# Private contact: alex@swen.nu

# CHANGELOG:
# 2009-03-17	A.Swen	created.

# SETTINGS
date=$(date +%Y%m%d)
me=$(basename $0)
mydir=$(dirname $0)


# FUNCTIONS
die () {
  rc=$1
  shift
  echo "========================================================================" >&2
  echo "====                          FATAL  ERROR                          ====" >&2
  echo "========================================================================" >&2
  echo "" >&2
  echo $@ >&2
  exit $rc
}

usage () {
  rc=$1
  shift
  echo "Usage $0 <disk>. example: $0 /dev/sda"
  exit $rc
}

mklvm_part () {
  [ -n "$1" ] && cat << EOF |fdisk $1
n
p
1
1

t
8e
p
w
EOF
}
# SCRIPT
[ ! "${USER}" == "root" ] && die 0 only root may do that
[ $# -lt 1 ] && usage 1

[ -b $1 ]||die 1 "device $1 not found"

mklvm_part $1

# END