I am a new Ubuntu user who has spent a lot of time on Windows. A very common practice for me on Windows was making two drives, C: and D: , storing installs/files in C:, and I used D: for backup or if I downloaded something that I wanted to save, I saved in D:

When installing Ubuntu, it asked me if I wanted to replace Windows 7. I thought it would install Ubuntu on C: but instead it used the whole partition, nevertheless I recovered my backup using testdisk.

What I wanted to do was to create a similar backup drive on Linux too.

My current partition table:

sda      8:0    0 232.9G  0 disk 
+-sda1   8:1    0 230.9G  0 part /
+-sda2   8:2    0     1K  0 part 
+-sda5   8:5    0     2G  0 part [SWAP]
sr0     11:0    1  1024M  0 rom

So should I use Gparted to create another sda3 and store my important data on that?

Also my current sda2 is listed as an extended partition, should I delete it? It's a very small partition, just 1K.