How To Fix “Not Enough Free Disk Space On /boot” In Ubuntu

Question: How To Fix “Not Enough Free Disk Space On /boot” In Ubuntu?

Today, I got the following error, but a simple one, when try to update my Lubuntu 14.04 desktop.

“Not Enough Free Disk Space On /boot”

Software Updater_002

This is because my /boot partition has caught up with unwanted old kernels, packages etc.


I heard about Computer Janitor feature which will remove unwanted old junk files in Ubuntu Tweak tool. Using the Computer Janitor, you can clean up your system like a freshly installed system. Janitor will remove;

  • Apps cache(Firefox/Chrome cache, Software center cache);
  • Thumbnail cache;
  • Apt cache;
  • Old kernels;
  • Package configs;
  • And unneeded packages.

If you haven’t install this tool, look at the following link.

To remove unwanted junk files, open Ubuntu Tweak, and click on the Janitor option.

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Select the check the boxes to remove unwanted junk from your system, and click Clean button.

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Janitor will now start to clean up your system

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Cool! The system is clean now.

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Again I re-launched the software updater. This time it went smoothly without any issues.

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That’s all. Enjoy. There are others ways also available to clean up the system. But, this seems very easy to follow. We can do system clean up in few mouse clicks.