Upgrading Linux Kernel 3.8.6 (Stable) release in Ubuntu 12.10

Linux kernel 3.8.6 has recently released on April 05, 2013 with lots of bugfixes and improvements.

The changelog contains all the improvements and bugfixes made in the kernel.

Below mentioned are some important fixes and improvements.

* ipv6: fix bad free of addrconf_init_net
* net: ethernet: cpsw: fix erroneous condition in error check
* net: fq_codel: Fix off-by-one error
* Btrfs: fix space leak when we fail to reserve metadata space
* Fix bug for DM9000 revision B which contain a DSP PHY
* drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
* ARM: kirkwood: Fix chip-delay for GoFlex Net
* NFSv4.1: Fix a race in pNFS layoutcommit
* iwlwifi: fix length check in multi-TB HCMD
* Bluetooth: Fix not closing SCO sockets in the BT_CONNECT2 state
* smsc75xx: fix jumbo frame support

We shall upgrade the default kernel version 3.5.0-17.28 shipped with Ubuntu 12.10 to 3.8.6-030806.

Download the script to perform an automated kernel upgrade process.

Now open the terminal and run the below command from the folder where script is downloaded to make it executable.

$ sudo chmod +x ker-upg-3.8.6.sh

$ sudo sh ker-upg-3.8.6.sh

After the completion, reboot the system for the changes to take effect and after reboot run the below command to confirm the version.

$ uname -r

In case if the kernel 3.8.6 is not compatible with your system hardware, then run the below command to remove the kernel 3.8.6 and switch back to previous kernel.

$ sudo apt-get purge linux-image-3.8.5-030805