[firedrake] Firedrake installation stuck at petsc install

Hello, I tried installing firedrake on my Ubuntu Wily Werewolf machine. I am using the setup script provided on the webpage. Everything goes fine, until it hit this stage, where the installation is currently stuck for the past one hour. 'Processing ./petsc Installing collected packages: petsc Running setup.py install for petsc ... \' Any idea what might be going wrong ? How do I recover from this situation ? Best Regards Krishna