I have installed Windows 7 and ubuntu 12.04 as dual boot on my 320 GB laptop. I have three partitions. 200 GB - Window's 7 is installed in it. 100 GB - NTFS partition (un used). 20 GB - Ubuntu 12.04.
I can access 100 GB (new volume) both in windows and ubuntu 12.04.
I am running out of ubuntu disk space. How can I extend/increase 20 GB to 120 GB by using 100 GB(unused) disk space?