new-partition.sh
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new-partition.sh
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	#!/bin/sh
	#
	# Adds a new partition to a device mapper volume group
	#
	# Usage ..... new-partition <device> <volume group>
	# <logical volume name> [mounting point]
	# Example ... new-partition /dev/sdb1 centos_dwellers wharf /wharf
	# (or) new-partition /dev/sdb1 centos_dwellers wharf
	#
	# If mounting point is omitted, disk is mounted in /<logical volume name>
	#

	# Parses arguments

	if [ $# -lt 3 ] \|\| [ $# -gt 4 ]; then
	echo 'Usage: new-partition <device> <volume group>'
	echo ' <logical volume name> [mounting point]'
	exit 1
	fi

	DEVICE=$1
	VG=$2
	LVNAME=$3

	if [ $# -eq 4 ]; then
	MOUNTING_POINT=$4
	else
	MOUNTING_POINT=/$LVNAME
	fi

	pvcreate "$DEVICE"
	vgextend "$VG" "$DEVICE"
	lvcreate -l 100%FREE -n "$LVNAME" "$VG"
	mkfs -t xfs "/dev/$VG/$LVNAME"
	echo "/dev/mapper/$VG-$LVNAME $MOUNTING_POINT xfs defaults 1 2" >> /etc/ftab
	mount "$MOUNTING_POINT"