VirtualBox Guest Additions woes

Sigh… I wish that computers would just work all the time!

Today i booted my machine, launched my snazzy Linux virtual machine, proceeded to start my XAMPP stack and mount my shared folder so that my Linux VM can communicate with my host OS (sigh) Windows… This works 99.9% of the time, but to my horror:

/sbin/mount.vboxsf: mounting failed with the error: No such device

FUCK! What now? So i google and google, but nothing works…

I’m now bashing my head in frustration against my desk, spilling my coffee and rubbing my blood-red forehead, but that didn’t help either… I try mount VBoxGuestAdditions via VirtualBox, nothing. Nothing, nothing, nothing! NOTHING!

By now i’m getting so irritated that i’m drinking coffee after coffee and smoking vociferously… and then…. -cue lightbulb- if you can’t take the horse to the water (mount VBoxGuestAdditions in Linux), pick the fucker up and dump him in there (download the fucking thing from Linux and run it from Linux). So, i dig around looking for the URL, eventually find it, mount the ISO file (help instructions on mounting an ISO file in Linux here), run the installation script, reboot and IT WORKS!! …and the children lived happily ever after.