I'm encountering a problem with the df command on my Debian 11.8 system. According to df, almost 90% of the space on my / (root) partition is being used. However, the root partition (formatted as ext4) does not appear to be actually that utilized. All important directories (/var, /boot, /tmp, /home, etc.) have their own partitions. I have checked all directories and files stored on /, but I could only account for a few GBs, which shouldn't make up the reported 90% usage.
Here are the steps I've taken so far:
- Searched for hidden files and directories using
du -sch .[!.]* * | sort -h - Checked all files and directories with
ls -lahanddu -hs - Cleaned the apt cache using
apt-get clean - Looked for open/used but deleted files via
lsof +L1andlsof | grep deleted - Used ncdu to search for files and directories
- Rebooted the system
- Checked for old and unused installed kernels
- Checked mounts and
/etc/fstabfor "shadow-mounts"
Do you have any tips for why I might be seeing high usage without being able to identify the corresponding files?
