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Thread: grub2 EFI boot loader internal/external booting

  1. #401
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    Re: grub2 EFI boot loader internal/external booting

    Quote Originally Posted by bean123 View Post
    Yes, it's working for me. The bios rom have been written, it should be working. Perhaps you can post the x.org log file ?

    BTW, acpi=force is not needed any more, as DMI can be detected with the bios dump.
    OK, thanks, I will get logs together later this am after sleep.
    Tried on imac81 ATI fglrx - hexdump as attached data is there, but no video yet, possibly have some cleaning up to do.
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    Re: grub2 EFI boot loader internal/external booting

    Has this change been committed yet?

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    Re: grub2 EFI boot loader internal/external booting

    Quote Originally Posted by shadowdude1794 View Post
    Has this change been committed yet?
    Not yet.You can use the attachment in #398.

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    Re: grub2 EFI boot loader internal/external booting

    Wow, Big step guys. I think that certain version of the Mac Mini were the only other machines to get working graphics so far.

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    Re: grub2 EFI boot loader internal/external booting

    This new version uses combined method to detect frame buffer address, it should be more accurate.

    The attachment contains both 32-bit and 64-bit efi image, the latest loadbios command is also included.
    Attached Files Attached Files

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    Re: grub2 EFI boot loader internal/external booting

    Quote Originally Posted by bean123 View Post
    This new version uses combined method to detect frame buffer address, it should be more accurate.

    The attachment contains both 32-bit and 64-bit efi image, the latest loadbios command is also included.
    I tried the grub64.efi with loadbios on imac81, still no desktop.

    Here is collection of logs for imac81 with xorg driver radeonhd and ati fglrx.
    Xorg and dmesg logs for pc boot included as reference.

    MBP41 appears to be almost working for nvidia drivers but not xorg nv. But ubuntu gui login is squashed to black (faint backlight) and just barely visible, desktop likewise i.e. of no use. Logs coming.

    Is 4GB RAM relevant?

    Is loadbios procedure the same for grub32?
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  7. #407
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    Re: grub2 EFI boot loader internal/external booting

    Quote Originally Posted by pxwpxw View Post
    I tried the grub64.efi with loadbios on imac81, still no desktop.

    Here is collection of logs for imac81 with xorg driver radeonhd and ati fglrx.
    Xorg and dmesg logs for pc boot included as reference.

    MBP41 appears to be almost working for nvidia drivers but not xorg nv. But ubuntu gui login is squashed to black (faint backlight) and just barely visible, desktop likewise i.e. of no use. Logs coming.
    Hi,

    My mb has intel driver, which works perfectly, no apparent different from pc mode.

    Is 4GB RAM relevant?
    RAM size should not matter.

    Is loadbios procedure the same for grub32?
    Yes, it's the same.

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    Re: grub2 EFI boot loader internal/external booting

    bean123

    Attached logs for MBP41 with nvidia or xorg nv driver, efiboot using loadbios, no efifb. pcboot logs included.
    Driver nvidia seems to be nearly working except video is crushed to black, can just see to log into ubuntu gui, can see it going to desktop, then too black to find anything - could be just backlight issue?. No problem with pc boot. But xorg driver nv gave no progress after boot.

    Could you perhaps post your xorg.conf / driver for reference.
    EDIT; ok saw you post now.
    Attached Files Attached Files
    Last edited by pxwpxw; March 17th, 2009 at 10:18 AM.

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    Re: grub2 EFI boot loader internal/external booting

    Quote Originally Posted by pxwpxw View Post
    bean123

    Attached logs for MBP41 with nvidia or xorg nv driver, efiboot using loadbios, no efifb. pcboot logs included.
    Driver nvidia seems to be nearly working except video is crushed to black, can just see to log into ubuntu gui, can see it going to desktop, then too black to find anything - could be just backlight issue?. No problem with pc boot. But xorg driver nv gave no progress after boot.

    Could you perhaps post your xorg.conf / driver for reference.
    I see this line in X.org.0:

    RADEONHD(0): RHDVGASave: VGA FB Offset (0x00000000) is out of range of the Cards Internal FB Address (0xC0000000)

    Perhaps you can add video=efifb or video=vesafb option so that grub2 will fill in the frame buffer address.

    EDIT: For you nv output, I think this line is relevant:
    (EE) NV(0): Couldn't find the DDC routing table. Mode setting will probably fail!

    Perhaps the information is stored somewhere else.
    Last edited by bean123; March 17th, 2009 at 10:31 AM.

  10. #410
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    Re: grub2 EFI boot loader internal/external booting

    Quote Originally Posted by bean123 View Post
    I see this line in X.org.0:

    RADEONHD(0): RHDVGASave: VGA FB Offset (0x00000000) is out of range of the Cards Internal FB Address (0xC0000000)

    Perhaps you can add video=efifb or video=vesafb option so that grub2 will fill in the frame buffer address.

    EDIT: For you nv output, I think this line is relevant:
    (EE) NV(0): Couldn't find the DDC routing table. Mode setting will probably fail!

    Perhaps the information is stored somewhere else.
    Still have to check your suggestions above.

    -------------

    grub32 (#405 above) tried on MacBook21 (intel945 video).
    Not good here.

    I can boot into desktop gui, no xorg fbdev, with or without loadbios bios.bin (checked and has data).
    getting simlar results either way, but logs differ in detail (attached).

    (Using - linux /vmlinuz root=/dev/da3 )

    ----------

    grub32 - I now get the "Can't find frame buffer address".
    for
    linux /vmlinuz root=/dev/da3 video=efifb
    and using fbdev, and blacklist, expecting console video
    Something broke?

    Previous version 2021 has no problems with video=efifb and xorg fbdev to give console video and gui on fbdev.

    ------------
    Logs attached may be some use.
    -------------
    Attached Files Attached Files

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