Hello! I had this commands in the rc.local file (OS X Mavericks) that I need to execute in order to run my bootcamp installation (Win7) from within Virtualbox. They change the permissions and unmount bootcamp as a partition: Code: sudo chmod 777 /dev/disk0s4 diskutil unmount /dev/disk0s4 It seems that rc.local does not work anymore in Yosemite and now I cannot start Win7 within Virtualbox without first manually executing the above commands via terminal. How can I automate this task at startup? I understood that "launchd" might be of help but I'm not an expert here. Thank you!