Assessing which partitions are really mounted. Made sure that a bus related reason is shown if bus was inquired. Improved hint and usage text.

xorriso-dd-target/xorriso-dd-target

@@ -53,7 +53,7 @@ print_usage() {
   echo "advisable device names is printed to stdout. One per line."
   echo "Device names must not begin by '-' and must be single words. They must"
   echo "not contain '/'. E.g. 'sdc' is valid, '/dev/sdc' is not valid."
-  echo "If devices names are given, then they get listed with advice shown."
+  echo "If device names are given, then they get listed with advice shown."
   echo "If one of the given device names gets not advised, the exit value is 1."
   echo
   echo "Only if option -DO_WRITE is given and -list_all is not, and if exactly"
@@ -225,6 +225,7 @@ list_devices() {
     reasons=
     good_trans=
     good_fs=
+    bad_trans=
     bad_fs=
 
     # Unwanted device name patterns
@@ -267,6 +268,7 @@ list_devices() {
         tasty=y
       elif test -n "$trans"
       then
+        bad_trans="$trans"
         yucky=y
         if test "$transports" = "not_an_expected_name"
         then
@@ -279,6 +281,14 @@ list_devices() {
         fi
       fi
     done
+    if test -z "$good_trans" -a -z "$bad_trans"
+    then
+      yucky=y
+      reasons="${reasons}no_bus_info- "
+    elif test -z "$bad_trans"
+    then
+      reasons="${reasons}$good_trans "
+    fi
 
     # Wanted or unwanted filesystem types
     fstypes=$($sudo_cmd $lsblk_cmd -n -o FSTYPE /dev/"$name")
@@ -381,7 +391,7 @@ list_devices() {
     else
       if test -n "$show_reasons"
       then
-        echo "$name : YES : $good_trans $reasons$descr"
+        echo "$name : YES : $reasons$descr"
       else
         echo "$name"
       fi
@@ -401,7 +411,18 @@ write_image() {
   fi
   partitions=$($lsblk_cmd -n -p -o NAME /dev/"$2" | grep -v '^'/dev/"$2"'$' \
                | sed -e 's/[^a-zA-Z0-9_+@:.,/-]//g' | tr '\n\r' '  ')
-  echo "Would do:   $sudo_cmd $umount_cmd /dev/"$2" $partitions"
+  mounted_devs=
+  for i in /dev/"$2" $partitions
+  do
+    if mount | grep '^'"$i"' ' >/dev/null
+    then
+      mounted_devs="$mounted_devs $i"
+    fi
+  done
+  if test -n "$mounted_devs"
+  then
+    echo "Would do:   $sudo_cmd $umount_cmd $mounted_devs"
+  fi
 
   if test -z "$dd_cmd"
   then
@@ -444,16 +465,17 @@ then
     with_vendor_model=y
     devs="$candidates"
     list_devices >&2
-    echo "HINT: Re-run with one of the names {$(echo $candidates | sed -e 's/ /,/g')} as additional argument." >&2
+    echo "HINT: Unplug the unwanted devices from the machine,"
+    echo "      or add the desired name out of {$(echo $candidates | sed -e 's/ /,/g')} as additional argument." >&2
     exit 3
   else
     if test -n "$devs_named"
     then
       echo "NO CANDIDATE FOR TARGET DEVICE AMONG THE GIVEN NAMES !" >&2
-      echo "Overall available devices:"
     else
       echo "NO CANDIDATE FOR TARGET DEVICE FOUND !" >&2
     fi
+    echo "Overall available devices:"
     list_all=y
     show_reasons=y
     with_vendor_model=y