1 $ cp "$TESTDIR/device-class.crush" .
2 $ crushtool -c device-class.crush -o device-class.compiled
3 $ crushtool -d device-class.compiled -o device-class.conf
4 $ crushtool -c device-class.conf -o device-class.recompiled
5 $ cmp device-class.crush device-class.conf
6 $ cmp device-class.compiled device-class.recompiled