@nicoss, voici les résultats des commandes proposées :
[tastybud@linux ~]$ df -h
Sys. de fichiers Taille Utilisé Dispo Uti% Monté sur
devtmpfs 3,9G 0 3,9G 0% /dev
tmpfs 3,9G 47M 3,8G 2% /dev/shm
tmpfs 3,9G 2,0M 3,9G 1% /run
/dev/mapper/fedora_localhost--live-root 15G 15G 86M 100% /
tmpfs 3,9G 112K 3,9G 1% /tmp
/dev/sdb3 976M 249M 661M 28% /boot
/dev/sda1 1,8T 514G 1,2T 30% /home/tastybud/Sync
/dev/sdc1 8,7G 37M 8,2G 1% /mnt/0f0e3222-dd31-41b5-bdb2-c6f053c1fbaf
/dev/sdb1 599M 21M 579M 4% /boot/efi
/dev/sdc2 477G 136G 342G 29% /home/tastybud/media
/dev/sdc3 447G 279G 168G 63% /home/tastybud/Donnees
tmpfs 787M 140K 787M 1% /run/user/1000
/dev/sdd1 7,5G 80K 7,5G 1% /run/media/tastybud/57D4-EEBC
[tastybud@linux ~]$ free -h
total used free shared buff/cache available
Mem: 7,7Gi 2,0Gi 4,1Gi 134Mi 1,6Gi 5,3Gi
Swap: 1,9Gi 0B 1,9Gi
[tastybud@linux ~]$ sudo du --exclude="/home" -x -h -a / | sort -r -h | head -30
[sudo] Mot de passe de tastybud :
14G /
7,4G /usr
5,9G /var
3,3G /var/lib
3,1G /var/lib/flatpak
2,8G /var/lib/flatpak/repo/objects
2,8G /var/lib/flatpak/repo
2,8G /usr/share
2,6G /usr/lib64
1,3G /var/tmp
1,3G /usr/lib
633M /var/tmp/flatpak-cache-ZMLCS0/child-oci-DyxOYM/blobs/sha256/4eaf81bd034a4e08b7356f77b26d455baf4ea158dc389a8e875c8067ec9a9479
633M /var/tmp/flatpak-cache-ZMLCS0/child-oci-DyxOYM/blobs/sha256
633M /var/tmp/flatpak-cache-ZMLCS0/child-oci-DyxOYM/blobs
633M /var/tmp/flatpak-cache-ZMLCS0/child-oci-DyxOYM
633M /var/tmp/flatpak-cache-ZMLCS0
633M /var/tmp/flatpak-cache-FA8VS0/child-oci-cAg7Or/blobs/sha256/4eaf81bd034a4e08b7356f77b26d455baf4ea158dc389a8e875c8067ec9a9479
633M /var/tmp/flatpak-cache-FA8VS0/child-oci-cAg7Or/blobs/sha256
633M /var/tmp/flatpak-cache-FA8VS0/child-oci-cAg7Or/blobs
633M /var/tmp/flatpak-cache-FA8VS0/child-oci-cAg7Or
633M /var/tmp/flatpak-cache-FA8VS0
621M /var/cache
556M /var/spool
555M /var/spool/abrt
532M /usr/share/locale
462M /usr/bin
428M /usr/lib/firmware
427M /var/spool/abrt/ccpp-2020-10-14-11:10:00.967266-13060/coredump
427M /var/spool/abrt/ccpp-2020-10-14-11:10:00.967266-13060
417M /usr/lib64/libreoffice