improve umount mecanism

dmount

@@ -22,7 +22,7 @@ Mountpoint_data=/home/primardj/data
 
 force_remove_vgdevice() {
     echo "force remove vg cryptdata"
-    doas dmsetup info --columns
+    #doas dmsetup info --columns
     doas dmsetup remove /dev/mapper/cryptdata-*
     doas dmsetup remove /dev/mapper/cryptdata
 }
@@ -43,12 +43,31 @@ umount_devices() {
     doas umount -R $Mountpoint_data
 }
 
+error_umount() {
+    echo "Error, can't umount all devices, need some manual help." >&2
+    lsblk
+    exit 1
+}
+
+error_deactivate_vg() {
+    echo "Error, impossible de deactive vg." >&2
+    doas dmsetup info --columns
+    echo "Try to force remove vgdisk from memory." >&2
+    if force_remove_vgdevice 
+    then
+        echo "could at list remove vgdevice."
+        exit 0
+    else
+        echo "couldn't remove vgdevice. need manual intervention." >&2
+        exit 1
+    fi
+    
+}
 
 umount_lvm_on_luks() {
     echo "locking device cryptdata"
-    umount_devices || echo "Error; can't umount devices" >&2 && exit 0
+    umount_devices || error_umount
 
-    #doas umount -R /home/primardj || echo "Error, can't umount devices" >&2 && exit 0
     doas lvchange -a n cryptdata || force_remove_vgdevice
     doas cryptsetup close cryptdata
 }