Archives For kernel

Linux Kernel 3.12

Linus Torvalds finally announced Linux Kernel 3.12. Here’re the new features and how to install / upgrade to Kernel 3.12 in Ubuntu 13.10, Ubuntu 12.04, Ubuntu 12.10 and Linux Mint.

Linus Torvalds wrote on the mailing list (read the announcement):

I was vacillating whether to do an rc8 or just cut the final 3.12, but
since the biggest reason to *not* do a final release was not so much
the state of the code, as simply the fact that I’ll be traveling with
very bad internet connection next week, I didn’t really want to delay
the release. Sure, we had a number of driver reverts, and there was an
annoying auto-NUMA memory corruption fix series, but none of it was
really worth delaying 3.12 for.

But the fact that I’m going to be (effectively) off-line next week
means that I’m *not* opening the merge window for 3.13 yet …

What’s New in Linux Kernel 3.12:

  • The Radeon open-source kernel graphics driver has improved Dynamic Power Management, but it won’t be until Linux 3.13 where Radeon DPM is enabled by default along with HDMI audio.
  • A brand new DRM/KMS driver in the form of the Snapdragon MSM driver written by Rob Clark to go along with his reverse-engineered Freedreno driver for Qualcomm Snapdragon/Adreno graphics.
  • Run-time GPU power management so NVIDIA Optimus systems can dynamically power on/off the secondary GPU.
  • Experimental DRM render nodes support done by David Herrmann over the summer.
  • AMD Berlin APU support as the first APU built upon AMD’s Heterogeneous System Architecture (HSA).
  • The EXT4 file-system now supports aggressive extent caching and better recovery capabilities.
  • Random F2FS, XFS, and Btrfs file-system improvements. This kernel does deliver on disk improvements.
  • zRAM has been promoted out of the staging area of the kernel. ZRAM supports a compressed block device in RAM to avoid paging to disk and is mostly of benefit for systems with limited amounts of system memory.
  • Various staging driver updates and sound driver work and other glorious work.
  • Install / Upgrade Linux Kernel 3.12

    The DEBs for Linux Kernel 3.12 has been made into kernel-ppa. Press Ctrl+Alt+T on keyboard to open terminal and follow the steps below to download and install them.

    1. Download DEBs for this kernel:

    For 32-bit Ubuntu, Linux Mint and alternatives run commands below one by one:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200-generic_3.12.0-031200.201311031935_i386.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200_3.12.0-031200.201311031935_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-image-3.12.0-031200-generic_3.12.0-031200.201311031935_i386.deb

    For 64-bit Ubuntu, Linux Mint and alternatives run commands below one by one:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200-generic_3.12.0-031200.201311031935_amd64.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200_3.12.0-031200.201311031935_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-image-3.12.0-031200-generic_3.12.0-031200.201311031935_amd64.deb

    2. For both 32-bit & 64-bit install the Kernel via:

    sudo dpkg -i linux-headers-3.12.0-*.deb linux-image-3.12.0-*.deb

    Once installed, restart your computer and done.

    If for some reason the new kernel does not work properly, run command below to remove Linux Kernel 3.12:

    sudo apt-get purge linux-image-3.12.0-* linux-headers-3.12.0-*

    Linux Kernel 3.11.5

    The latest Linux Kernel 3.11.5 has been released. It fixed a security issue: ipv6 ipsec encryption bug in sctp_v6_xmit. Also there’re a lot of bugfixes and drivers udpates. See the changelog.

    All users of kernel 3.11 series are urged to upgrade as soon as possible. Here’s how to upgrade in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.04, Ubuntu 12.10 and Linux Mint 13/14/15/16.

    Upgrade Linux Kernel 3.11.5:

    At the moment of writing this tutorial, the kernel PPA is not ready for this kernel. I’ll update this post once the PPA updated.

    Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, follow the steps below:

    1. Download the kernel Debs:

    For 32-bit system:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/linux-headers-3.11.5-031105-generic_3.11.5-031105.201310132235_i386.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/linux-headers-3.11.5-031105_3.11.5-031105.201310132235_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/linux-image-3.11.5-031105-generic_3.11.5-031105.201310132235_i386.deb

    For 64-bit system:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/linux-headers-3.11.5-031105-generic_3.11.5-031105.201310132235_amd64.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/linux-headers-3.11.5-031105_3.11.5-031105.201310132235_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.5-saucy/linux-image-3.11.5-031105-generic_3.11.5-031105.201310132235_amd64.deb

    2. Install the debs:

    sudo dpkg -i linux-headers-3.11.5*.deb linux-image-3.11.5*.deb

    3. Restart your computer and done!

    4. If you have problem with this kernel. Run command to remove Linux Kernel 3.11.5:

    sudo apt-get purge linux-image-3.11.5-*

    Linux Kernel 3.10.16

    The Linux Kernel 3.10 LTS series has reached v3.10.16, all users of this series are urged to upgrade as soon as possible. Here’s how to upgrade in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.04, Ubuntu 12.10 and Linux Mint.

    Linux Kernel 3.10.16 fixed a security issue: ipv6 ipsec encryption bug in sctp_v6_xmit, updated drivers as well as other bug fixes. See changelog.

    Upgrade Linux Kernel 3.10.16:

    Press Ctrl+ALt+T on your keyboard to open terminal. When it opens, follow the steps below:

    1. Download the DEBs.

    For 32-bit:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.16-saucy/linux-headers-3.10.16-031016-generic_3.10.16-031016.201310131935_i386.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.16-saucy/linux-headers-3.10.16-031016_3.10.16-031016.201310131935_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.16-saucy/linux-image-3.10.16-031016-generic_3.10.16-031016.201310131935_i386.deb

    For 64-bit:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.16-saucy/linux-headers-3.10.16-031016-generic_3.10.16-031016.201310131935_amd64.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.16-saucy/linux-headers-3.10.16-031016_3.10.16-031016.201310131935_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.16-saucy/linux-image-3.10.16-031016-generic_3.10.16-031016.201310131935_amd64.deb

    2. Install the Debs:

    sudo dpkg -i linux-headers-3.10.16*.deb linux-image-3.10.16*.deb

    3. Restart your computer and done.

    4. If you have problem with this new kernel, run command below to remove Linux Kernel 3.10.16:

    sudo apt-get purge linux-image-3.10.16-*

    Linux Kernel 3.10.15

    The Latest Kernel 3.10.15 LTS has been released with lots of drivers updates or fixes, including Radeon, Intel i915, and USB. Same to Kernel 3.11.4, the ARM platform gets a fix for the Thumb-2 bug in the AES assembler code, and two bugs were squashed for the x86 architecture. See the official announcement.

    All users of Kernel 3.10 series are urged to upgrade as soon as possible. Here’s how to do it in Ubuntu 13.10 Saucy, Ubuntu 13.04 Raring, Ubuntu 12.04 Precise, Ubuntu 12.10 Quantal, Linux Mint.

    Upgrade Linux Kernel 3.10.15

    Press Ctrl+ALt+T on your keyboard to open terminal. When it opens, follow the steps below:

    1. Download the DEBs:

    For 32-bit system:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.15-saucy/linux-headers-3.10.15-031015-generic_3.10.15-031015.201310081202_i386.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.15-saucy/linux-headers-3.10.15-031015_3.10.15-031015.201310081202_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.15-saucy/linux-image-3.10.15-031015-generic_3.10.15-031015.201310081202_i386.deb

    For 64-bit system:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.15-saucy/linux-headers-3.10.15-031015-generic_3.10.15-031015.201310081202_amd64.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.15-saucy/linux-headers-3.10.15-031015_3.10.15-031015.201310081202_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10.15-saucy/linux-image-3.10.15-031015-generic_3.10.15-031015.201310081202_amd64.deb

    2. Install the Kernel:

    sudo dpkg -i linux-headers-3.10.15*.deb linux-image-3.10.15*.deb

    Once done. Restart your computer.

    (Optional) To remove Linux Kernel 3.10.15 and revert back to previous:

    sudo apt-get purge linux-image-3.10.15-*

    Linux Kernel 3.11.4

    The Linux Kernel 3.11 series has reached 3.11.4, which brings lots of drivers updates or fixes include Radeon, Intel i915, Wireless and USB. The ARM platform gets a fix for the Thumb-2 bug in the AES assembler code, and two bugs were squashed for the x86 architecture. Read the official announcement

    All users of Kernel 3.11 series are urged to upgrade as soon as possible. Here’s how to install or upgrade Linux Kernel 3.11.4 in Ubuntu 13.10 Saucy, Ubuntu 13.04 Raring, Ubuntu 12.04 Precise, Ubuntu 12.10 Quantal and their derivatives.

    To get started, press Ctrl+ALt+T on your keyboard to open terminal. When it opens, run command to download the DEBs:

    For 32-bit system:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.4-saucy/linux-headers-3.11.4-031104-generic_3.11.4-031104.201310081221_i386.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.4-saucy/linux-headers-3.11.4-031104_3.11.4-031104.201310081221_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.4-saucy/linux-image-3.11.4-031104-generic_3.11.4-031104.201310081221_i386.deb

    For 64-bit system:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.4-saucy/linux-headers-3.11.4-031104-generic_3.11.4-031104.201310081221_amd64.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.4-saucy/linux-headers-3.11.4-031104_3.11.4-031104.201310081221_all.deb
    
    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.4-saucy/linux-image-3.11.4-031104-generic_3.11.4-031104.201310081221_amd64.deb

    Both 32-bit & 64-bit install the Debs via:

    sudo dpkg -i linux-headers-3.11.4*.deb linux-image-3.11.4*.deb

    Once done, restart your computer.

    (Optional) To remove Linux Kernel 3.11.4 and revert back to the previous, run command:

    sudo apt-get purge linux-image-3.11.4-*