Ubuntu – The safest way to clean up /boot partition


I have 200 MB assigned for the /boot partition. Whenever I try to update the kernel, I receive an error message that basically states /boot is full.

What can I do to cleanup /boot and remove/backup the older kernels?

Best Answer

  • Command line method:

    First check your kernel version, so you won't delete the in-use kernel image, running:

    uname -r

    Now run this command for a list of installed kernels:

    dpkg --list 'linux-image*' | grep ^ii

    and delete the kernels you don't want/need anymore by running this:

    sudo apt-get remove linux-image-VERSION

    Replace VERSION with the version of the kernel you want to remove.

    When you're done removing the older kernels, you can run this to remove ever packages you won't need anymore:

    sudo apt-get autoremove

    And finally you can run this to update grub kernel list:

    sudo update-grub
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