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Friday 4 September 2015

Safely try new kernels in Ubuntu Linux

Some while ago, bothered by the ACPI PCC Probe Failed message at every boot, I decided to try the latest Linux kernel, which was at version 4.2. But I ran into troubles. So this tutorial is not focused on installing new kernels, but on the steps you should take to maximize the chances your new kernel will work and how do you prepare to restore your system to the old kernel, before actually installing the new one.

Here is what I recommend doing before trying a new kernel:
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