diff --git a/dmount.sh b/dmount.sh
new file mode 100755
index 0000000..0920c7e
--- /dev/null
+++ b/dmount.sh
@@ -0,0 +1,6 @@
+#/bin/bash
+
+echo "unlocking device cryptdata"
+doas rc-service dmcrypt restart
+doas vgchange -a y cryptdata
+doas mount -a
diff --git a/dumount.sh b/dumount.sh
new file mode 100755
index 0000000..048920e
--- /dev/null
+++ b/dumount.sh
@@ -0,0 +1,31 @@
+#/bin/bash
+
+MOUNTPOINT_cours=/home/primardj/cours
+MOUNTPOINT_doc=/home/primardj/Documents
+MOUNTPOINT_virt_machine=/home/primardj/virtual_machine
+MOUNTPOINT_data=/home/primardj/data
+
+
+
+
+remove_vgdevices() {
+    echo "force remove devices." >&2
+    doas dmsetup info --columns
+    echo "removing all cryptdata volumes" >&2
+    sleep 3
+    array=(/dev/mapper/cryptdata-*)
+    for i in ${array[@]}; do
+        echo "$i"
+        doas dmsetup remove "$i"
+    done
+    doas dmsetup remove cryptdata
+}
+
+echo locking device cryptdata
+doas umount -R $MOUNTPOINT_cours
+doas umount -R $MOUNTPOINT_doc
+doas umount -R $MOUNTPOINT_virt_machine
+doas umount -R $MOUNTPOINT_data
+
+doas lvchange -a n cryptdata || remove_vgdevices
+doas cryptsetup close cryptdata