I am using a Debian VM on my Synology NAS for some applications, and one of them is Youtube-dl, so I can easily download youtube video's. Almost all commands have stopped working on the VM, with the following error: Code: Error writing to output file - write (28: No space left on device) Error writing to file - write (28: No space left on device) df -h shows this: Code: [email protected]:/home/user# df -h Filesystem Size Used Avail Use% Mounted on udev 990M 0 990M 0% /dev tmpfs 201M 3.0M 198M 2% /run /dev/sda2 61G 60G 0 100% / tmpfs 1001M 44K 1001M 1% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 1001M 0 1001M 0% /sys/fs/cgroup /dev/sda1 511M 132K 511M 1% /boot/efi //192.168.2.2/video 5.3T 4.4T 885G 84% /mnt/video tmpfs 201M 0 201M 0% /run/user/999 tmpfs 201M 0 201M 0% /run/user/1000 But the disk isn't full. As you can see, /mnt/video is a mount for a external SMB drive. The total download data through this VM is more than 400 GB. I'm sure it is on the NAS (under /video). How can I make Debian calculate the storage correctly?