How to Remove Pacman Cache on Linux

What Causes This?

Pacman keeps downloaded package files in its cache so you can reinstall or downgrade packages later without downloading them again. Over time, that cache can grow large, especially on systems that update often or install many packages. The problem is usually caused by old package versions piling up in /var/cache/pacman/pkg and never being cleaned out.

Common Symptoms

• Your Linux drive is running low on free space
• /var or / is using much more storage than expected
• Pacman cache contains many old package files
• System updates fail because there is not enough disk space
• You notice hundreds of .pkg.tar.zst files in the Pacman cache folder

How to Fix It Manually

1. Open a terminal.

   • On most Linux desktops, press Ctrl+Alt+T.
   • You can also open your app menu and search for Terminal.

2. Check how much space the Pacman cache is using.

   • Run:

     du -sh /var/cache/pacman/pkg

   • This shows the total size of the cache folder so you know how much space you may recover.

3. Remove old cached packages but keep the most recent versions.

   • Run:

     sudo paccache -r

   • This is the safest standard cleanup method. It removes older package versions and keeps a few recent copies.
   • If paccache is not available, install it with:

     sudo pacman -S pacman-contrib

4. If you want a more aggressive cleanup, keep only one version of each package.

   • Run:

     sudo paccache -rk1

   • This keeps just one cached version of each installed package.
   • If you also want to clean uninstalled package caches, use:

     sudo paccache -ruk0

5. Clear the entire Pacman cache if you need maximum space back.

   • Run:

     sudo pacman -Scc

   • Pacman will ask for confirmation. Type y when prompted.
   • Be careful: this removes all cached packages, so you will need to re-download packages if you reinstall or downgrade later.

6. Verify the cleanup worked.

   • Check the cache size again:

     du -sh /var/cache/pacman/pkg

   • You can also check free disk space with:

     df -h

7. Optional: automate future cache cleanup.

   • To avoid the cache growing again, use paccache regularly after updates.
   • Many users set up a systemd timer or run cache cleanup manually every few weeks.

Fix It Automatically with Kudu

If you do not want to search through cache folders and cleanup commands yourself, Kudu can help automate disk cleanup and identify large temporary or leftover files that waste space. It gives you a simpler way to find storage problems and fix them without digging through system directories manually.

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