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This question already has an answer here:

Can I install Linux 4.9 Kernel in elementary OS 0.4 that supports bfq disk I/O scheduler??? If possible, can you please point me to that repo or guide??

marked as duplicate by lemonslice, Daniel Foré Jan 24 '17 at 19:35

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Yes, you can.

Ubuntu produces mainline kernel builds packaged as .debs for easy installation. For example, here's 4.9.

If your system is 64-bit (like most new-ish computers), you would go to the "amd64" section and download three files:

  • linux-headers-4.9.0-040900_4.9.0-040900.201612111631_all.deb
  • linux-headers-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb
  • linux-image-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb

If you put them in one folder, you can install them all at once with sudo dpkg -i *.deb.

You should be able to boot into GRUB, select "Advanced options for elementary OS", and choose the kernel version.

Note: an upstream kernel might not work out of the box, depending on your hardware! Don't be surprised if it doesn't work.

  • They don't have a module: i915 and also see the question; I asked for a kernel with bfq but these kernels use cfq – Jøê Grèéñ Jan 24 '17 at 10:28
  • I get the i915 error message too; doesn't seem to affect anything on my machine, but your mileage may vary. As for bfq, it seems it's not part of the prepackaged Ubuntu kernels, but this slightly outdated guide may help. – nevp Jan 25 '17 at 5:57
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Yes you can install 4.9, or any other for that matter...keep in mind you could run into issues with a different kernel.

sudo apt-add-repository -y ppa:teejee2008/ppa sudo apt update sudo apt-get install ukuu ukuu-gtk

choose your kernel > install

source:http://www.makeuseof.com/tag/upgrade-kernel-ukuu-ubuntu/

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i would say-you could install 4.9 kernel - yet Eos loki´s important drivers won´t match that kernel. I have already tested it. But you are free to experiment. Look in around and you will find how to.

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