[Unit]
Description=Kill All Processes
+DefaultDependencies=no
After=shutdown.target
-OnlyByDependency=yes
+RefuseManualStart=yes
[Service]
-Type=finish
-ValidNoProcess=yes
-ExecStart=/etc/init.d/killall start
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=-/etc/init.d/killall start
+StandardOutput=tty