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Thread: How to boot live cd in vesa mode ?

  1. #1
    Join Date
    Sep 2009
    Beans
    22

    How to boot live cd in vesa mode ?

    Hello,

    i want to boot the live cd of ubuntu 10.10 in safe mode (vesa or fbdev driver). The boot options are gone. Is there any way to show them ?
    The pc freezes before the first boot image shows (its like it freezes before the bootloader).

    I have an imac with 7600 nvidia but the graphic card is fried. I use ubuntu 10.04 with software rendering but no 3d hardware acceleration.
    Because of the broken card nouveau KMS fails so i can only boot with fbdev or vesa which is fine with me

    Any help is appreciated

  2. #2
    Join Date
    Mar 2010
    Beans
    8,248
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: How to boot live cd in vesa mode ?

    When Ubuntu starts:

    F6 then Esc to see the boot:

    file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --

    Remove quiet splash and add xforcevesa so it looks like this


    file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz xforcevesa --

    Then Enter to boot.

  3. #3
    Join Date
    Sep 2009
    Beans
    22

    Re: How to boot live cd in vesa mode ?

    Yes but i don't reach that point. It freezes before it shows anything. Fedora shows the boot screen (with the 10 secs countdown) and there i can select safe mode. In ubuntu it does not reach that point. Any thoughts ?

  4. #4
    Join Date
    Sep 2009
    Beans
    22

    Re: How to boot live cd in vesa mode ?

    Ok after some more searching i found that it needed the special live cd from ubuntu for mac. Probably some EFI issue

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