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Thread: kubuntu 8.04 ram issue

  1. #1
    Join Date
    Jul 2008
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    7

    kubuntu 8.04 ram issue

    hi, i built my kubuntu hardy install on a dual core intel with 3GB of RAM i recently installed another 3 GB which the bios can see but linux cant, is there something I need to do?

    TIA

    Peter

  2. #2
    Join Date
    Dec 2006
    Location
    Oregon, US
    Beans
    1,541
    Distro
    Ubuntu Development Release

    Re: kubuntu 8.04 ram issue

    If you're using the x86 (32 bit) version of Ubuntu, then it won't see the entire 6 gigs. A 32 bit OS can only address ~4 gigs of RAM. You need the 64 bit version of Ubuntu (AMD64).

  3. #3
    Join Date
    Oct 2007
    Location
    Chennai, India
    Beans
    3,786
    Distro
    Ubuntu 13.10 Saucy Salamander

    Re: kubuntu 8.04 ram issue

    Quote Originally Posted by Lormen View Post
    intel with 3GB of RAM i recently installed another 3 GB which the bios can see but linux cant
    You can:

    1) Switch to using (K)Ubuntu 64-bit

    or

    2) Enable PAE extensions in your kernel (will require a kernel recompile). Physical Address Extensions allow a 32-bit operating system to access more than 3.2Gb RAM; this is a limitation to all 32-bit OS's, not just linux. Enabling PAE allows access to upto 64Gb (?) RAM.
    Cheers,PRShah
    Make your own: Ubuntu, Kubuntu, Xubuntu, Mythbuntu All-in-One Live DVD
    "I never make mistakes; I thought I did, once.. but I was wrong."

  4. #4
    Join Date
    Sep 2006
    Location
    Bruxelles, Belgium
    Beans
    657

    Re: kubuntu 8.04 ram issue

    You can also install the 'server' version of the kernel via the package manager (it has PAE enabled by default).

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