creating symbolic link: Protocol error

Question

I have created linux (Centos) on my virtual box. When I ssh to it and I try to create symbolic link (on my shared folder with full access):

ln -s path/folder/exa         


        

Answer 1

By default VirtualBox VM disables creation of symbolic links.

Oracle VM VirtualBox shared folders support symbolic links under the following conditions:

• The host operating system must support symlinks. For example, a Mac OS X, Linux, or Oracle Solaris host is required.
• Currently only Linux and Oracle Solaris Guest Additions support symlinks.
• For security reasons the guest OS is not allowed to create symlinks by default.

To enable creation of symlinks for a shared folder you should do:

1. Run this command on your host (where {VM_name} is the name of VM and {share_folder_name} is the name of shared directory):

$ VBoxManage setextradata "{VM_name}" VBoxInternal2/SharedFoldersEnableSymlinksCreate/{share_folder_name} 1

In my case it looks like:

$ VBoxManage setextradata "ubuntu16" VBoxInternal2/SharedFoldersEnableSymlinksCreate/shared 1

2. Reboot the VM.

More information you can find here:

https://docs.oracle.com/cd/E97728_01/E97727/html/sharedfolders.html https://www.virtualbox.org/ticket/18572?cversion=0&cnum_hist=2