Yesterday I asked about problems I am having with my laptop computer
Basically the problem is that all recent kernels are failing, whereas old kernels still work. I received a suggestion that perhaps the BIOS is the problem. I looked in my BIOS, set it to its default state and nothing improved.
The point I cannot understand is how BIOS could affect later kernels and leave older ones still working? The last kernel which still works is 3.19.0-20, but I noticed that it has an error on boot.
If I drop to 3.19.0-18 everything is clean.
It occurs to me that perhaps some bad piece of code is being dragged from kernel to kernel and that is what is giving me problems?
Everybody talks of deleting old kernels and what I want to try is to delete the latest kernels. I would like to boot to 3.19.0-18, which is the last completely clean kernel and delete everything later than that. Then I should be able to make a normal boot to the now latest 3.19.0-18 and have everything working again??
The method I see to delete kernels is via synaptic. There may be an even better choice which I don't know about.
The basic question is about the sanity of the idea. Do pieces get dragged from kernel to kernel, and can I go back to an old kernel and delete all recent ones? Has anyone actually tried to do such a thing?