Because of the high power usage I'd like to downgrade my kernel in Ubuntu 11.10 to the version used in 10.10 or 11.04. How can I do that and won't it cause any problems?


1 Answer 1


How can I do...

You could download the kernel binaries from the old or new Ubuntu releases /1/.

Ubuntu Packages Search: http://packages.ubuntu.com

Picking natty-updates kernel linux-image-2.6.38-10-generic : http://packages.ubuntu.com/natty-updates/linux-image

Downloading it and installing with the command:

sudo dpkg -i linux-image-2.6.38-10-generic_2.6.38-10.46_i386.deb

Package management is telling:

Selecting previously deselected package linux-image-2.6.38-10-generic.
(Reading database ... 127436 files and directories currently installed.)
Unpacking linux-image-2.6.38-10-generic (from linux-image-2.6.38-10-generic_2.6.38-10.46_i386.deb) ...
Setting up linux-image-2.6.38-10-generic (2.6.38-10.46) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
update-initramfs: Generating /boot/initrd.img-2.6.38-10-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
Generating grub.cfg ...
Found background image: /lib/plymouth/themes/my-plymouth/my-wallpaper.png
Found linux image: /boot/vmlinuz-3.0.0-12-generic
Found initrd image: /boot/initrd.img-3.0.0-12-generic
Found linux image: /boot/vmlinuz-2.6.38-10-generic
Found initrd image: /boot/initrd.img-2.6.38-10-generic
Found memtest86+ image: /boot/memtest86+.bin
Found Microsoft Windows XP Professional on /dev/sda1
Found Ubuntu 10.10 (10.10) on /dev/sdd1


Picking from the grub > Previous Linux versions > Kernel 2.6.38-10

...and the (K)Ubuntu is telling that i'm running with the 2.6.38-10-generic /2/.

enter image description here

...won't it cause any problems?

Well ;) you could tell us...


  1. http://www.kubuntuforums.net/showthread.php?51992-FAQ-Kernel
  2. http://www.kubuntuforums.net/showthread.php?53976-FAQ-Version-info-Regenerated
  • 1
    Thanks, the lucid kernel killed my wifi, but the natty one works just fine.
    – Borsook
    Oct 25, 2011 at 6:32
  • 1
    Thanks for this. I've downgraded and the horrible regression bug that bit me in Oneiric is gone with no apparent side effects. +1 Nov 3, 2011 at 3:14
  • 1
    I have downgraded it to 2.6.38 as well. Working almost fine. And battery life increased by atleast 50 mins. So I shall use this kernel whenever I need more battery power :) Thanks for the post.
    – mac
    Dec 18, 2011 at 14:12
  • might wanna add you need linux-headers for dkms so be sure to install them before the image..
    – Alex R
    Jul 24, 2013 at 13:15

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.