raspberry pi – RPI Tracking disk usage – hidden usage

admin

I am using Raspberry Pi 4 with Raspbian OS (UNIX based) and trying to find out where all my disk space has gone. Whatever disk usage analyser tool I tried, nothing showed the correct result.

Result of df -h shows that 204 GB of 219 GB is used:
enter image description here

But when I try du command on every single directory in the root folder, it sums up to a few gigabytes.

I tried to install ncdu, but the results is the same, it shows that only about 15 GB is used: sudo ncdu -rx /
enter image description here

I would be grateful for any tips/ideas how to analyse this.
My first thought was about docker cache, but I cleared everything (images, containers, volumes etc.) and not with much difference.

Thanks in advance.

Read more here: Source link