I recently installed Ubuntu on a new hard drive. I did not perform any partitioning operations during installation. After the installation and upgrade, I tried to partition the drive in which Ubuntu was installed.
/dev/sda2/I am not able to create another partition from this one. Is it possible to do it or should I have to live with one BIG partition?
The option to resize this partition is greyed out.
What happens if I try to unmount this partition?
You are doing this using fdisk command
you can do major operation with disk-drive
For a step-by-step guide refer to this link: How to use fdisk to manage partitions on Linux
Check the link, which will help you to resize the drive partition and to create an extended partition. From the resized partition you can create a primary or an extended partition:
What you are trying to do is to shrink the running system partition of Ubuntu.
That is like to ask a surgeon to give himself a double bypass... ;-)
Boot the Ubuntu Live CD or the gparted live CD and then repartition!
