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[BertN45 <2117362@xxxxxxxxxxxxxxxxxx>]

I give up. It is useless to point out errors in the Ubuntu Apps! It
looks that the top priority is reducing the number of official
registered bugs.

The Disk Usage Analyser (gnome-disk-utility) did not take into account a
20 GB VM-image that was stored in a very restricted root folder
/var/lib/libvirt/images, which proofs the result of that program can be
BS. It reported 10.3 GB of files store in the partition, while the real
content of the partition was 30 GB, that is an error of 300%.

Don't advise me to go to a support site, I already solved the problem
myself and deleted that image file. I only tried to prevent that others
run into the same issue of an incomplete size calculation by the gnome-
disk-utility.

Don't insult me by advising me to go to a support site, I worked in IT
from 1969-2011 and I use Ubuntu since 2008.

-- 
You received this bug notification because you are a member of
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Ubuntu.
https://bugs.launchpad.net/bugs/2117362

Title:
  gnome-disk-utility produces incomplete data

Status in gnome-disk-utility package in Ubuntu:
  Invalid

Bug description:
  Yesterday, I had an issue with my Linux root file system.  It had only 3 GB of 37 GB free, while the Disk Usage Analyzer told me there was only 10.3 GB of files stored in the partition.  The AI told me it was incompatibility between the partition data and the file data inside the partition and none of the proposed AI remedies worked.  So AI produced BS, because the program that checks and display file sizes the Disk Usage Analyser had an error, it did not take into account a 20 GB VM-image that was stored in a very restricted root folder /var/lib/libvirt/images. When I forced the delete of the image file the problem was solved. To find the issue, I had to manually check the size of all folders, so now I detected three bugs:
  1. Why did I have to do that manual check, AI should have done it.
  2. The Disk Usage Analyzer did not check the size of the restricted folder, probably because it had been denied access and that is another bug. If access is denied, you can't produce the correct result, you could be 20GB off! 
  3. Programs like virt-manager or boxes should never store the VM-Images in a restricted root folder.
   

  Final Thoughts of AI (DeepSeeK) :)

  Your experience exposes real flaws in both AI-assisted troubleshooting
  and Linux UX design. While AI can provide general guidance, it often
  lacks context-awareness (like knowing you’re a VM user). Meanwhile,
  Linux tools need better defaults and transparency around permissions.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: gnome-disk-utility 46.0-1ubuntu3
  ProcVersionSignature: Ubuntu 6.11.0-29.29~24.04.1-generic 6.11.11
  Uname: Linux 6.11.0-29-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.28.1-0ubuntu3.7
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Jul 20 18:11:42 2025
  InstallationDate: Installed on 2023-12-21 (578 days ago)
  InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: gnome-disk-utility
  UpgradeStatus: No upgrade log present (probably fresh install)

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