I have a 12 GB partition with Linux installed in it, but I started runnung out of space. I tried to use gparted on a CD, but for some reason, I could not add space to the extended partition.

This is what my partition table looks like:

/dev/sda3     : extended        12    GB    

/dev/sda5     : ext4            10    GB    

/dev/sda6     : linux-swap      2     GB           

unallocated   :                 69,77 GB

i want to add unallocated to /dev/sda5. I tried to resize both dev/sda3 and /dev/sda5, but no free space is shown in the window.

Thanks in advance.