Monday, April 01, 2013

Upgrading Linux Kernel 3.8.4 (Stable) release in Ubuntu 12.10

Linux kernel 3.8.4 has recently released on March 20, 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.

* ALSA: seq: Fix missing error handling in snd_seq_timer_open()
* tty: serial: fix typo "SERIAL_S3C2412"
* ext3: Fix format string issues
* USB: storage: fix Huawei mode switching regression
* USB: cdc-wdm: fix buffer overflow
* dcbnl: fix various netlink info leaks
* rtnl: fix info leak on RTM_GETLINK request for VF devices
* vxlan: fix oops when delete netns containing vxlan
* tcp: fix double-counted receiver RTT when leaving receiver fast path
* ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
* ARM: w1-gpio: fix erroneous gpio requests
* powerpc: Fix cputable entry for 970MP rev 1.0

We shall upgrade the default kernel version 3.5.0-17.28 shipped with Ubuntu 12.10 to 3.8.4-030804.

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

$ sudo 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 3.8.4 is not compatible with your system hardware, then run the below command to remove the kernel 3.8.4 and switch back to previous kernel.

$ sudo apt-get purge linux-image-3.8.4-030804

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