In my laptop I have first installed Windows 7. Then, installed Ubuntu 11.10. Now my laptop contains two Operating Systems. I don't have internet connectivity in home. But I have Ubuntu 14.04 ISO with me,
i need to upgrade Ubuntu 11.10 with Ubuntu 14.04 without uninstalling Windows 7 and Ubuntu 11.10
. How to achieve this...
please help..am new one to Ubuntu.