Install/Upgrade to Linux Kernel 3.12.7 in Ubuntu/Linux Mint

Fixes in Kernel 3.12.7:

•     ext4: fix bigalloc regression
•     ACPIPHP / radeon / nouveau: Fix VGA switcheroo problem related to hotplug
•     ARM: sun7i: dt: Fix interrupt trigger types
•     GFS2: Fix incorrect invalidation for DIO/buffered I/O
•     rtlwifi: pci: Fix oops on driver unload
•     cpupower: Fix segfault due to incorrect getopt_long arugments
•     drm/radeon: fix render backend setup for SI and CIK
•     drm/radeon: fix UVD 256MB check

 Linux Kernel 3.12.7 Installation

To install kernel 3.12.7 on Ubuntu/Linux Mint, enter these commands:

cd /tmp 

wget http://goo.gl/W0lvgK -O kernel-3.12.7 

chmod +x kernel-3.12.7 

sudo sh kernel-3.12.7 

sudo reboot

To uninstall kernel 3.12.7, run this command:

sudo apt-get purge linux-image-3.12.7* 

sudo update-grub