Format All Disks

format-hdd.sh

#!/bin/bash

# Ensure the script is run as root
if [ "$EUID" -ne 0 ]; then
  echo "Please run as root"
  exit
fi

# List all the hard drives
drives=$(lsblk -dpno NAME,TYPE | grep 'disk' | awk '{print $1}')

# Function to clean up LVM and reformat a drive
clean_up_and_reformat_drive() {
  local drive=$1
  echo "Cleaning up LVM on $drive..."

  # Deactivate all logical volumes
  lvs=$(lvdisplay | grep "LV Path" | awk '{print $3}')
  for lv in $lvs; do
    lvchange -an $lv
    lvremove -f $lv
  done

  # Remove volume groups
  vgs=$(vgdisplay | grep "VG Name" | awk '{print $3}')
  for vg in $vgs; do
    vgchange -an $vg
    vgremove -f $vg
  done

  # Remove physical volumes
  pvs=$(pvdisplay | grep "PV Name" | awk '{print $3}')
  for pv in $pvs; do
    pvremove -ff $pv
  done

  echo "Reformatting $drive..."

  # Unmount all partitions on the drive
  for partition in $(lsblk -ln $drive | awk '{print $1}'); do
    umount -f /dev/$partition 2>/dev/null
    swapoff /dev/$partition 2>/dev/null
  done

  # Create a new partition table (GPT) and partition using sfdisk
  echo ",,L" | sfdisk $drive --delete --force

  # Re-read the partition table
  partx -u $drive

  # Wait a moment to ensure the kernel recognizes the changes
  sleep 1

  # Format the new partition with ext4 filesystem
  mkfs.ext4 -F ${drive}1

  echo "$drive reformatted successfully."
}

# Loop through each drive and clean up LVM and reformat it
for drive in $drives; do
  clean_up_and_reformat_drive $drive
done

echo "All drives have been cleaned up and reformatted."