Mount virtualbox shared folder at startup

Reference: How to mount a VirtualBox shared folder at startup?

• Add shared folder in virtualbox, do not select Auto-mount
• Force the vboxsf module to be loaded before fstab
• add vboxsf in /etc/modules
• Add the following line in /etc/fstab (change the uid, gid as needed)

shared_folder   /path/to/mountpoint   vboxsf   auto,rw,uid=0,gid=0  0   0

Fail to mount Guest Additions in VirtualBox

Just met this problem today and found solution here

sudo apt-get install virtualbox-guest-dkms virtualbox-guest-utils virtualbox-guest-x11