Ubuntu – lowlatency kernel in 17.10 put machine in unusable state

17.10grub2kernelsystem-installation

The lowlatency kernel that came from my 17.04->17.10 upgrade put my machine in unusable state. (This new kernel variety is not mentioned in 17.10 release notes.) Entering grub, starting with generic kernel, and then completely removing

linux-image-4.13.0-16-lowlatency

(using synaptic) fixed my problem.

My question is basically: What is going on? How do I make my machine work with a lowlatency kernel?

Best Answer

I'm pretty much just guessing here, but it's possible that your system can only boot when certain kernel modules are loaded that are not supplied with the kernel. Then they have to be built using dkms, but this only works if you have the corresponding linux-headers-4.13.0-16-lowlatency package installed. When you install that package, the appropriate kernel modules will automatically be built for you.

In general the headers package should always be installed when an image is installed, but for some reason this does not always automatically happen.

Related Question