Unable to write to virtual drive placed on different drive in the same hardisk using VirtualBox

Unable to write to virtual drive placed on different drive in the same
hardisk using VirtualBox

So here is the condition, my initial condition is as same as this thread.
But the problem is, I have following the same procedure and it just does
not work. The virtual machine failed to write to its virtual drive, and
giving an error message. I also tried to make a symlink Virtual VMs in my
home folder that linked to other drives (say /media/foo). But it also gave
me with the similar error report (it failed to write to the virtual
drive). I have no idea about how to fix it. Unfortunately I failed to
collect the error report to be posted here. I am using the latest
VirtualBox Version 4.2.16.