An error occurred while mounting the shared folder after Ubuntu is installed on the virtualbox Virtual Machine in windows. virtualboxubuntu

An error occurred while mounting the shared folder after Ubuntu is installed on the virtualbox Virtual Machine in windows. virtualboxubuntu
In virtualbox, the host is win8 and the virtual machine is Ubuntu14.04.
Folder Mount problems:

Automatic mounting:Use the shared folder provided by the virtual machine to create a fixed allocated data space. Select the auto mount check box, but the/media/sf_MyShare folder is mounted after each boot, this folder only has the root permission to execute, so you do not want to mount it to this folder.

Mount to/mnt/shared:
In most documents, append "share/mnt/share vboxsf defaults 0 0" or "share/mnt/share vboxsf rw, gid = 100, uid = 1000, auto 0 0 "will occur at the next boot/mnt/shared Mount Error
The correct method is to add "mount-t vboxsf share/mnt/share" to etc/rc. local"


Note: assume that the folder to be mounted to Ubuntu is/mnt/share, and the folder name defined by fixed allocation in windows is share.