VMware Solution: “failed to lock the file cannot open the disk”
The Tip Simply Shows How to Troubleshooting the VMware Player, Workstation and Fusion Issue “failed to lock the file cannot open the disk.” on *Nix Systems.
On the Post Bottom you will find a Link to Guides on Installing the VMware Tools for Most Linux Clients.

Open a Command Line Terminal Window.
Remove the Lock.
rm -rf /[path/to/myVirtualMachine]/Virtual Disk.vmdk.lck
How to Install VMware Tools for Linux and Unix:
Links to Step-by-Step Guides on Installing VMware Tools.