执行update-upgrade时出现dpkg目录删除警告的处理咨询

After doing a standard update-upgrade I got 2 warning messages highlighted in orange color:

dpkg: warning: unable to delete the old directory '/var/lib/ubuntu-advantage': Directory not empty
dpkg: warning: unable to delete the old directory '/etc/ubuntu-advantage': Directory not empty

Does anyone know what this thing is should I just leave it or do I need to remove something??

Hey there! Let’s break this down for you—those orange warnings are totally normal and usually nothing to stress over. Here’s the full scoop:

First off, those directories are linked to Ubuntu Advantage, Canonical’s official suite of support tools and services (it includes things like extended security updates, enterprise-level system maintenance, and specialized tools for businesses). Most home users don’t even actively use it, so this won’t mess with your daily system operations.

The warnings pop up because when the Ubuntu Advantage packages get updated, dpkg tries to replace the old directories with fresh, updated versions—but the old folders still have leftover files (think cached data, temporary logs, or leftover configs that didn’t get cleaned up automatically during the update).

What should you do next? #

• Option 1: Leave it as is
  This is totally safe! The warnings don’t break your system, and your updates have already completed successfully. They might show up again if the package updates in the future, but they’re completely harmless.

• Option 2: Clean up the directories to eliminate the warnings
  If you want to make the warnings go away for good, you can safely tidy up those folders (just back things up first to be cautious):

  1. First, check what’s inside the directories to confirm there’s nothing critical:

     ls -la /var/lib/ubuntu-advantage
     ls -la /etc/ubuntu-advantage
     

  2. Move the old directories to a backup location (safer than deleting immediately):

     sudo mv /var/lib/ubuntu-advantage /var/lib/ubuntu-advantage.bak
     sudo mv /etc/ubuntu-advantage /etc/ubuntu-advantage.bak
     

  3. Re-run your update/upgrade to let dpkg create fresh, clean directories:

     sudo apt update && sudo apt upgrade
     

  4. If everything works smoothly afterward and you don’t need the backups, you can delete them:

     sudo rm -rf /var/lib/ubuntu-advantage.bak
     sudo rm -rf /etc/ubuntu-advantage.bak
     

Either way, your system is in good shape—this is just dpkg being meticulous about updating package files!

备注：内容来源于stack exchange，提问作者goemon