Thank you rock and Cathal for reply.
May be my explanation was not clear.
In the vagrant-created virtual machines from vagrant file, there are 3 users named Ubuntu, vagrant and Guest Session.
For vagrant user password is vagrant.
But what is the pass word of Ubuntu user?
Again when I want to increase vagrant user disk size it asks for Ubuntu password.
As vagrant-created pynq_vm virtual machine creates only 5.25GB disk space, how can I increase disk space as Xilinx tools and PetaLinux requires a large disk space to install.I have created share folder on this to access installation file and try for installation which shows these -
Any help will really help me greatly.