After finding a lot of other posts on the topic that didn't work out for me this one did the trick so I'm reposting for my own sense of self preservation.
Copy the Virtualbox autostart plist template file to your system's LaunchDaemons folder.
sudo cp \
/Applications/VirtualBox.app/Contents/MacOS/org.virtualbox.vboxautostart.plist \
| # | |
| # UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs | |
| # just run "sudo trimforce enable" to activate the trim support from now on! | |
| # | |
| # Original version by Grant Parnell is offline (http://digitaldj.net/2011/07/21/trim-enabler-for-lion/) | |
| # Update July 2014: no longer offline, see https://digitaldj.net/blog/2011/11/17/trim-enabler-for-os-x-lion-mountain-lion-mavericks/ | |
| # | |
| # Looks for "Apple" string in HD kext, changes it to a wildcard match for anything | |
| # | |
| # Alternative to http://www.groths.org/trim-enabler-3-0-released/ |