ubuntu-cleanup-images-headers

For those pesky times when the /boot volume fills up

Overview

Removes all kernel images and headers except for the following:

• previous kernel
• current kernel
• next kernel (if installed)

Previous and next are determined by getting a list of installed kernels and sorting ASCIIbetical

Example

ASCIIbetical list of kernels found on system:

linux-image-3.19.0-47-generic
linux-image-3.19.0-66-generic
linux-image-4.4.0-67-generic
linux-image-4.4.0-70-generic
linux-image-4.4.0-71-generic
linux-image-4.4.0-72-generic

If the current kernel is linux-image-4.4.0-71-generic then the following kernels are kept and all others removed:

linux-image-4.4.0-70-generic
linux-image-4.4.0-71-generic
linux-image-4.4.0-72-generic

Same logic applies for headers

Usage

1. Reboot machine so it is running the latest installed kernel
2. Run sudo bash cleaupboot.sh to remove all old kernel images and headers