【VirtualBox】共享文件夹失效问题

fix：

sudo ln -f -s /opt/VBoxGuestAdditions-5.1.20/lib/VBoxGuestAdditions/mount.vboxsf /sbin/mount.vboxsf

sudo mount -t vboxsf WinShare /mnt/Share

from：

https://forums.virtualbox.org/viewtopic.php?f=3&p=283645

http://blog.csdn.net/skylake_/article/details/53132499

自动挂载：

sudo nano /etc/rc.local

增加：mount -t vboxsf WinShare /mnt/Share/