allow uninitialized sudo with password too (for interactive run)

bin/epm-sh-functions

@@ -301,11 +301,19 @@ set_sudo()
 		return
 	fi
 
+	# if input is a console
+	if inputisatty && isatty && isatty2 ; then
+		if ! sudo -l >/dev/null ; then
+			SUDO="fatal 'Can't use sudo (only without password sudo is supported). Please run epm under root.'"
+			return
+		fi
+	else
 		# use sudo if one is tuned and tuned without password
 		if ! sudo -l -n >/dev/null 2>/dev/null ; then
 			SUDO="fatal 'Can't use sudo (only without password sudo is supported). Please run epm under root.'"
 			return
 		fi
+	fi
 
 	SUDO="sudo --"
 	# check for < 1.7 version which do not support -- (and --help possible too)