sudo du -sh /* 2>/dev/null | sort -rh
440M /boot
16M /bin
14M /sbin
11M /run
56K /root
44K /tmp
40K /home
16K /lost+found
9,6M /etc
4,0T /media
4,0K /webmin-setup.out
4,0K /srv
4,0K /snap
4,0K /opt
4,0K /mnt
4,0K /lib64
2,8G /usr
2,1G /lib
2,0G /var
0 /vmlinuz.old
0 /vmlinuz
0 /sys
0 /proc
0 /initrd.img.old
0 /initrd.img
0 /dev