The latest Linux Kernel 3.12.3 has been released a few hours ago. If you’re using Kernel 3.12 series, this tutorial shows how to install or upgrade in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.04, Linux Mint and their derivatives.
Linux kernel 3.12.3 is yet another big release that introduces numerous updated drivers, many architecture improvements (AMR, PowerPC, s390, parisc, ARM64, avr32), some fixes for the CIFS and EXT4 filesystems, as well as sound improvements.
See the changelog for details.
Install / Upgrade Kernel 3.12.3:
The DEB packages for Ubuntu and Debian users have been made into Ubuntu Kernel mainline page.
Press Ctrl+Alt+T on keyboard to open terminal. When it opens, run commands below one by one:
1. For 32 bit system, download the DEBs via:
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.3-trusty/linux-headers-3.12.3-031203-generic_3.12.3-031203.201312041453_i386.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.3-trusty/linux-headers-3.12.3-031203_3.12.3-031203.201312041453_all.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.3-trusty/linux-image-3.12.3-031203-generic_3.12.3-031203.201312041453_i386.deb
For 64 bit system, run:
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.3-trusty/linux-headers-3.12.3-031203-generic_3.12.3-031203.201312041453_amd64.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.3-trusty/linux-headers-3.12.3-031203_3.12.3-031203.201312041453_all.deb wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.3-trusty/linux-image-3.12.3-031203-generic_3.12.3-031203.201312041453_amd64.deb
2. Install the DEBs:
sudo dpkg -i linux-headers-3.12.3-*.deb linux-image-3.12.3-*.deb
Restart your computer and done.
If your graphics card does not work properly with this kernel, you may re-configure or even re-install the video driver.
To revert back to previous kernel, reboot and go into Grub -> Advanced -> choose previous kernel. Then remove this kernel via:
sudo apt-get purge linux-headers-3.12.3-* linux-image-3.12.3-*