2. Since kernel updates (represented by lightning) aren't security updates (represented by shield), is it necessary to update kernels every time? For instance I am currently running LM 20.3, and super happy with the performance. Do I still need to update the kernel, though these have nothing to do with security. Can't I just get the security updates and be done with it, or should I expect poor performance?
3. Is it okay to delete older kernel packages? I checked my installed kernels with this command
Code: Select all
dpkg --list | grep linux-image
4. What is the difference between an unsigned and signed kernel image? Internet answers not helping; need it more dumbed down.
So the same command above revealed kernel images from as old as 5.4.0-132.148 all the way to 5.4.0-148.165, and awkwardly, one version called 5.0.4-74.83. 74??? But that is so out of sequence, duh! Anyway all of them are signed.
BUT the last on the list is generic kernel image 5.4.0.148.146. Are generic kernels safe, and if they aren't safe (A youtuber made a comment saying signed are safer than unsigned/generic), why does linux install them on our machines?
Please enlighten me.
(edit: bold)