
What I am trying to do is to shrink /dev/sda4 in order to move the unallocated 9.73 GiB up, and use them to expand /dev/sda1.
However I cannot shrink it, I keep getting the error "Partitions cannot overlap" :( Any ideas?
Edit:
Followed the instructions of jet. Partitions now look like this, and I cannot move /dev/sda4 down for some reason :/
