@@ -247,12 +247,17 @@ function read_password {

         echo '################################################################################'

         echo $msg

         echo '################################################################################'

-        echo "This value will be written to your localrc file so you don't have to enter it again."

-        echo "It is probably best to avoid spaces and weird characters."

+        echo "This value will be written to your localrc file so you don't have to enter it "

+        echo "again.  Use only alphanumeric characters."

         echo "If you leave this blank, a random default value will be used."

-        echo "Enter a password now:"

-        read -e $var

-        pw=${!var}

+        pw=" "

+        while true; do

+            echo "Enter a password now:"

+            read -e $var

+            pw=${!var}

+            [[ "$pw" = "`echo $pw | tr -cd [:alnum:]`" ]] && break

+            echo "Invalid chars in password.  Try again:"

+        done

         if [ ! $pw ]; then

             pw=`openssl rand -hex 10`

         fi