Bien installer gparted complet !

Ouvrir un terminal :

# dpkg -l | grep 'part'
ii gdisk 1.0.1-1 amd64 GPT fdisk text-mode partitioning tool
ii gpart 1:0.3-3 amd64 Guess PC disk partition table, find lost partitions
ii gparted 0.25.0-1+b1 amd64 GNOME partition editor
ii parted 3.2-17 amd64 disk partition manipulator
ii partitionmanager 3.0.0-1 amd64 file, disk and partition management for KDE

# apt-get install gdisk gpart gparted parted partitionmanager