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Thread: Freeze on boot at text logo

  1. #1
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    Freeze on boot at text logo

    I've been running Knoppix V6 live cd on my usb stick for a while and thought it was time for an update at it was several years old.
    I donloaded "KNOPPIX_V7.2.0CD-2013-06-16-EN.iso" and installed it on my USB. I verified the MD5.

    Unfortunately, it totally freezes while displaying the text KNOPPIX logo at the very beginning of boot.

  2. #2
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    Quote Originally Posted by eng3 View Post
    I verified the MD5. Unfortunately, it totally freezes while displaying the text KNOPPIX logo at the very beginning of boot.
    It looks like you have a good iso and a bad cd.
    Make another cd at a slower speed, then do a testcd on that.

  3. #3
    Junior Member
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    no it works on another computer

    I tried debug and saw:
    kernel: DMAR:[fault reason 02] Present bit in context entry is clear
    kernel: DMAR:[DMA Rearesent bit in context entry is clear
    kernel: DMAR:[DMA Read] Request device [0d:00.0] fault addr
    then repeating

    Googled it and tried disabled Intel VT-D in bios and everything worked fine. alternative would be to disabled the intel_iommu parameter.

  4. #4
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    Quote Originally Posted by eng3 View Post
    Unfortunately, it totally freezes while displaying the text KNOPPIX logo at the very beginning of boot.
    What do you get when you enter 'knoppix testcd' at the boot prompt?

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