extend_lv.sh

#!/bin/bash

DEVICE_NAME=$(lsblk -nldo NAME | sort -r | head -1)
USAGE_COUNT=$(sudo pvdisplay -c | grep -c /${DEVICE_NAME})
MOUNT_POINT=$1

if [ -z $MOUNT_POINT ]; then
  echo "NO MOUNT POINT SPECIFIED"
  exit 1
fi

if [[ $USAGE_COUNT != 0 ]]; then
  echo "NO FREE DEVICES HERE!"
  exit 1 
fi

echo -e "n\n\n\n\n\nw\n" | sudo fdisk /dev/${DEVICE_NAME}

sudo pvcreate /dev/${DEVICE_NAME}1

sudo vgextend vg0 /dev/${DEVICE_NAME}1

sudo lvextend -l +100%FREE vg0${MOUNT_POINT}

sudo resize2fs /dev/vg0${MOUNT_POINT}