[ubuntu] disk full error

Hello,
i want to do updates but it seems like my disk is full, I tried sudo apt-get install -f but it gave me the following output:
http://paste.ubuntu.com/23664944/

df gives this output :
http://paste.ubuntu.com/23664953/

sudo fdisk -l gives this:
http://paste.ubuntu.com/23664960/

ls /usr/src output :
http://paste.ubuntu.com/23664964/


help please !