Updating the kernel in ubuntu
Things like custom backgrounds and settings are already documented elsewhere, but be careful!
Many of the directions are outdated and the commands may need slight alterations to work correctly.
If you’re like me, you’ve wanted to customize an Ubuntu install DVD for a long time – but all the tools/directions for doing it are out of date and/or broken. I have successfully customized an ISO of Xubuntu 14.04 for my project Builduntu but this guide should work for just about any flavor of Ubuntu, maybe even other Linux distributions. Mint and Debian are very similar and may work with minimal changes to the commands (ie, replace apt-get with whatever package manager the particular distro uses).
It helps if the distro you want to customize is the same as what you are running currently, but is not necessary. First download the ISO you want to start customizing from Ubuntu’s release server.
You don’t need to be a Linux guru, just pay close attention to the directions and it will work fine.Minnow Board Turbot boards enable two methods to update the firmware.