Kernel

schitterende uitleg over het belang van kernels en drivers : https://sites.google.com/site/easylinuxtipsproject/20

via update mgr

By default, modern Linux keep the current kernel, plus one older version.
However, in some instances, Linux doesn’t remove old versions of the kernel.
keeping old kernels can cause having an extensive list of bootable kernels on the GRUB (boot) menu, which is not clean

list installed kernel versions

–incorrect :
sudo dpkg --list | egrep –i --color ‘linux-image|linux-headers’

remove old kernels using command line

The apt package manager can automatically remove all old kernels.
sudo apt-get ––purge autoremove

remove old kernels using synaptic

sections tab (left below) > “select “kernels & modules” > select thiose to uninstall