HowTo Ubuntu on Core 2 Duo or Core 2 Quad

Discussion in 'Kernel Questions' started by llamy, Jan 14, 2008.

  1. llamy

    llamy New Member


    I'm loking for a good Howto about how to Install Feisty or Gutsy on a Core 2 Duo or Core 2 Quad machine. I know this might involved building custom a SMP Kernel.

    Thank you very much for your replies.

  2. Hans

    Hans Moderator ISPConfig Developer

    Howto install a Linux SMP kernel on your system

    STEP 1: read the current kernel with the command:
    #uname -a
    The output will be something like: kernel-image-2.6-xxxxxx

    STEP 2: do a search for available linux SMP kernels:
    #apt-cache search kernel-image | grep smp

    STEP 3: Choose this linux kernel for use with Intel EM64T SMP systems:

    Choose this linux kernel for use with on AMD64 SMP systems:

    STEP 4: install the required Linux kernel with this command:
    #apt-get install kernel-image-2.6.8-12-em64t-p4-smp

    #apt-get install kernel-image-2.6-amd64-k8-smp

    STEP 5: verify if the new installed SMP Linux kernel is the current Linux kernel with the command:
    #uname -a

    Finally, remove the old kernel with the command:

    #dpkg --purge --force-remove-essential kernel-image-2.6-xxxxxx (as displayed within the output of uname -a at STEP 1).

    Important note:
    The available Linux SMP-kernels are available on the moment for Debian Etch. The Linux kernels on Ubuntu might be different!

    Last edited: Jan 14, 2008
  3. o.meyer

    o.meyer ISPConfig Developer ISPConfig Developer


    since Ubuntu 6.10 the standard kernel (generic) supports SMP.

    You can test it with

    cat /proc/cpuinfo
    Best regards,

    Last edited: Jan 15, 2008
  4. llamy

    llamy New Member

    Thank you Hans for this great howto, just want to know for how long have you been using this on a core 2 duo or quad system, and what have you seen as an improvement using it so far.:)

    Thanks Llamy.
  5. Hans

    Hans Moderator ISPConfig Developer

    Whell, my servers have dual Intel Xeon processors on board.
    In 2005 and 2006 i had setup Debian Sarge by using the unofficial Debian Sarge unofficial AMD64 cd.
    That version came out with support for Intel em64t kernels like Xeon and worked great. That version was not only for AMD as the name suggests, but for Intel Xeons as well. I did so, because in the time of Debian Sarge, 64 bit was not supported in the stable brance yet.

    On the moment, I use the Linux kernel 2.6.8-12-em64t-p4-smp (Debian Etch) for my servers with Intel dual Xeon processors and because i did use it from the beginning, i don't have information about performance improvement.
    Personally, i don't think that there will be a very big difference in performance between 32 bit and 64 bit-kernels, reason for this is that many applications don't have 64 bit support yet.
    Last edited: Jan 15, 2008
  6. llamy

    llamy New Member

    Hi Hans,

    Thank you very much for those infos, they are very helpful. If anyone has some experience with such systems on Ubuntu, their outputs here are very well welcome as well.


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