commit a5d5a0917e3d9f3d9582ba18af112cde15a8cfca parent b3a57056e032f05dea661779eb7306f6b97d5eaa Author: David Voznyarskiy <davidv@no-reply@disroot.org> Date: Sat, 7 Feb 2026 00:31:58 -0800 script to help with unmounting encrypted devices Diffstat:
| M | unmounter | | | 57 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 57 insertions(+), 0 deletions(-)
diff --git a/unmounter b/unmounter @@ -0,0 +1,57 @@ +#!/bin/sh + +set -e + +sudo -v || exit 1 + +mapped_devices="" +for path in /dev/mapper/usb*; do + [ -e "$path" ] || continue + mapped_devices="$mapped_devices $(basename "$path")" +done + +set -- $mapped_devices + +[ "$#" -eq 0 ] && exit 1 + +echo "Devices Found" +i=1 +for dev in "$@"; do + echo "[$i] /dev/mapper/$dev" + i=$((i + 1)) +done + +if [ $i -eq 2 ]; then + index=1 +else + printf "select a device to unmount [1-%d]: " $(( $# )) + read index + + case "$index" in + ''|*[!1-9]*) + exit 1 + ;; + esac + + if [ "$index" -lt 1 ] || [ "$index" -ge "$#" ]; then + exit 1 + fi +fi + +i=1 +for dev in "$@"; do + [ "$i" -eq "$index" ] && name="$dev" && break + i=$((i + 1)) +done + +mount_point="/mnt/$name" + +if mountpoint -q "$mount_point" 2>/dev/null; then + echo "umounting $mount_point" + sudo umount "$mount_point" +fi + +echo "cryptsetup closing $name" +sudo cryptsetup close "$name" + +echo "/dev/mapper/$name unmounted successfully"