diff --git a/format-usb.sh b/format-usb.sh new file mode 100644 index 0000000..f5d7672 --- /dev/null +++ b/format-usb.sh @@ -0,0 +1,84 @@ +#!/usr/bin/env bash +# +# Utility ccript to repurpose a removable device using exfat filesystem +# +# 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 3 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 .# +# +# @linux-aarhus - root.nix.dk +# + +# format removable USB device to exfat with name 'USB STICK' +LABEL='USB STICK' + +SCRIPTNAME=$(basename "$0") +VERSION="0.2" + +# don't run as root +if [[ $(whoami) == "root" ]] ; then + echo "Please run as user. Script will ask for root later." + exit 1 +fi + +# ensure a device is given +if [[ -z "$1" ]]; then + echo "No device specified ..." + echo "Usage: ${SCRIPTNAME} /dev/sdy" + exit +fi + +# get the last part of device path +device="$(echo $1 | cut -d'/' -f3)" +echo "Checking device on => $device" + +# create list of available devices +devices="$(lsblk -o NAME | egrep '^sd')" + +# check if device is valid - abort if not +if ! [[ $devices =~ (^|[[:space:]])$device($|[[:space:]]) ]]; then + echo "$1 not found" + echo "Aborting" + exit 1 +fi + +# check if device is removable - abort if not +[[ $(echo $(lsblk -no RM "$1" | head -n 1)) = '0' ]] && \ + echo "Non removable device detected!" && \ + echo "Aborting" && \ + exit 1 + +# Ask for confirmation +read -r -p "Confirm reformat of '$1' [y/N] " resp +if [[ "$resp" =~ ^([yY][eE][sS]|[yY])$ ]]; then + + # Repeat confirmation question + read -r -p "Irrevocably format '$1' [y/N] " resp2 + if [[ "$resp2" =~ ^([yY][eE][sS]|[yY])$ ]]; then + + # will do + echo "Formatting $1 ..." + + # use gdisk to create new partition table + # and a single Microsoft basic data partition type + printf 'o\ny\nn\n\n\n\n0700\nw\ny\n' | sudo gdisk "$1" > /dev/null + sudo mkexfatfs -n "${LABEL}" "$1"1 > /dev/null + + # done + echo "Done" + exit + fi + echo "Formatting aborted" +else + echo "Formatting aborted" +fi +