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Recently I wanted to try live CD/DVDs of several distros on my older desktop. (Myah 3.0, Sabayon 3.5, and Sidux 2008-02) In each case, boot halted with a black screen ...
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  1. #1
    Just Joined! Farmer Mike's Avatar
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    what is cmov?


    Recently I wanted to try live CD/DVDs of several distros on my older desktop.
    (Myah 3.0, Sabayon 3.5, and Sidux 2008-02)

    In each case, boot halted with a black screen sometimes, but mostly the message: "Processor does not support cmov."

    What is cmov?

  2. #2
    Linux Guru smolloy's Avatar
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    All I could find was this not-very-useful wikipedia link

    Sorry I couldn't be more helpful.
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  3. #3
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    Quote Originally Posted by Farmer Mike View Post
    Recently I wanted to try live CD/DVDs of several distros on my older desktop.
    (Myah 3.0, Sabayon 3.5, and Sidux 2008-02)

    In each case, boot halted with a black screen sometimes, but mostly the message: "Processor does not support cmov."

    What is cmov?
    cmov is an instruction only present on i686 cpu's and above. So, you are trying to boot a distro that was compiled for i686 or higher, on a lower cpu.

    A tipical case is the amd k6, which is ALMOST an i686 cpu, except that it lacks the cmov instruction, and hence will not run i686 object code.

    So, you need a distro that suits your cpu. Maybe one compiled for i386 or i586, like most these days. I can't be more concrete since I don't know the cpu you own.

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  5. #4
    Just Joined! Farmer Mike's Avatar
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    The processor is shown in kinfo as an AMD K-6. I can search distrowatch for suitable distros.

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