Trisquel 6 Kernel Upgrade Howto

1. Use the update manager to apply all updates
2. Search for linux-generic-lts-belenos in Synaptic Package Manager (System Settings > Synaptic) and install the package

Or in a terminal run:

sudo apt-get update
sudo apt-get install linux-generic-lts-belenos

To install a more recent linux-libre kernel follow the directions here: