Power off

So i got volumio but it was real slow and laggy when i plugged in a large hard drive with a lot of files, so i decided to follow this tutorial. getting-volumio-running-pibang-distro-t597.html

which seemed to do the trick, and allows me more room to play with what i can do on my pi. However, i’m pretty sure because i took this route, it broke some of the functions of volumio (mainly the turn off feature). How can i restore its functionality?