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    Mythlogic NYX1712 -EFI- bios page access glitch

    Discussion in 'Sager and Clevo' started by spectroplasm, Oct 30, 2012.

  1. spectroplasm

    spectroplasm Notebook Consultant

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    Hey guys, haven't posted here in a while. Though I'd share something I accidentally stumbled upon while trying to install Mountain Lion onto my Myth lappy.
    It's been said that Optimus enabled laptops "Can't" get OSX any flavor on it because of the fact that the soft "mux" isn't available on the real macs and that you can't disable it in the bios etc etc, so I thought since I've already tried to get my snow leopard disc working with great fail, why not go ahead and try my copy of Mountain Lion downloaded from the app store?

    All this of course with one thing in mind, get a working copy of osx on the laptop so I can continue my final cut projects without reverting to the imac I have at home. I know many will argue why put osx on the laptop when it's not gonna be worth it etc. I know it's not worth it BUT until I can run Final Cut in windows, that would be the day I stop trying :) besides Final Cut will refuse to work on vmware due to the fact that graphics acceleration isn't available with the emulated framebuffer drivers.

    --~-- fast forward to the subject now. I don't know if anyone has gotten to the pages I will show in images here or not (I shot them with my iphone 2g so blur ahoy) I had thought at first that it was something already available in the bios. But after retrying replicate it I had seen it was a glitch of some sort. Basically what I did to get here is like this, I had made a bootable USB disk to load my snow leopard disc via external DVD reader. Then after thinking I stopped and went ahead to the imac and made me a bootable USB of mountain Lion. It wouldn't boot at all at first since I had set my bios disk mode to RAID since I have the 3x 1TB drives in RAID mode. so I patched myself some DSDT .aml files to try to read ahead of the RAID disks since they would get the boot process to fail immediately in a kernel panic. I put two different boot loaders into the flash disk (chimera and chameleon), to swap between the two I had them mapped to buttons 3 and 6 on the keyboard. I tried chameleon with 3 button but it panicked, then upon restart the laptop hitched a brief 2 seconds in the hardware RAID screen, I had my finger held down on the F7 key to get to the boot menu in order to select the USB drive, the screen came back to the mythlogic post screen logo and the F7 for boot options lit up in white like it should. I selected my usb from the list and then immediately hit the 6 button, upon doing this the screen blanked two times and then the resolution went up (1920x1080 from the looks of it) next up it came back with a gray screen with blue letters. I didn't mind it much in the beginning but I after looking long enough at the screen I realized it was an EFI menu. here it is for all to see:

    [​IMG]
    This is the first screen, notice the small summary of system specs at the top left corner, then the menu options SELECT LANGUAGE / BOOT MANAGER / DEVICE MANAGER / BOOT MAINTENANCE MANAGER

    [​IMG]
    This is the DEVICE MANAGER screen, nothing seems to show up inside just a blank menu.

    [​IMG]
    this is the BOOT MAINTENANCE MANAGER an interresting menu becauseit lets you set Driver options, Boot options, Boot from a file, set Boot values and Timeouts etc.

    so there you have it. My next BIG question is how many more of these pages are hidden and locked away in the clevo/sager bios files? I sure want to find out and I know it's certain we can physically disable the discreet graphics on these machines, it's just the time to figure out how that lacks.
     
  2. spectroplasm

    spectroplasm Notebook Consultant

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    **UPDATE** I figured out how to "soft" patch the discreet GPU to not become detected at all when booting my USB. EFI modes are now working and I no longer get the dreaded boot0:GPT boot0:Test Boot0:error screen when launching chimera off my hdd :) this calls for pimping a goot boot menu and using that to "hopefuly dual boot osx and win7" side by side
     
  3. mythlogic

    mythlogic Company Representative

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    The better question is can you repeat your trick ;)

    And no you can't disable the discreet graphics trust me we have the entire menu of options that we can set, and you'll just cause the laptop to freak out and shut down. (It'll turn on however)

    A soft patch to keep it from being detected will work however :p
     
  4. spectroplasm

    spectroplasm Notebook Consultant

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    *CONFIRMED*! mountain lion's boot sequence now completely launched all the way to the installer screen *YAY!!!* we have graphic visuals! I'll install the os into one of my RAID disks (will first detach it from the array) and post back progress. @Mythlogic, happily yes I can repeat my trick :) I'll grab a video with an iphone 3gs as my canon camera isn't here right now to get a better vid. I'll shoot it going from a cold boot with the USB stick plugged in, then everyone can see how it goes :)
     
  5. spectroplasm

    spectroplasm Notebook Consultant

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    install finished, but upon reboot the screen halts here
    [​IMG]
    seems like it's having trouble picking up the disk, or the AHCI controller froze somewhere in the boot process.
     
  6. spectroplasm

    spectroplasm Notebook Consultant

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    this on the fly patching "could" lead somewhere, but I'm not that far into hardware memory patching. Only thing I know is it's possible to catch the boot process and modify values before loading an OS, much like how those vista loaders doing the rounds on the interwebs patched the files of windows (I hope I didn't step on any toes while saying that, if so I'm sorry I didn't mean to talk piracy or anything like it on the forums :-( )
     
  7. spectroplasm

    spectroplasm Notebook Consultant

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    Here's the Myth churning Mountain Lion! :) going to download the 10.8.2 update from apple and install it now then figure out how to get the quartz Extreme and composer to work so I can get FCPX working
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  8. spectroplasm

    spectroplasm Notebook Consultant

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    here is the video I took repeating the glitch.
    [​IMG]
    I went through all the menus and it does seem to be able to boot .efi files and scan through USB thumbdrives etc. I don't know what the boot options and set driver options do though so anyone having more know how please watch the video and see if anything can be pulled from this. Thanks
     
  9. Renaissance 2K

    Renaissance 2K Notebook Enthusiast

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    I so want to mess around with this when November is over.
     
  10. Zymphad

    Zymphad Zymphad

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    spectroplasm,

    In this glitch EFI Bios display, is there any option for secure boot or booting the primary drive in EFI mode?
     
  11. spectroplasm

    spectroplasm Notebook Consultant

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    Hey Hulawafu77, I have checked all over but I did not see any option to secure boot or boot primary drive. I did however as you could see from the video I made up there, see an option dubbed "add driver options" or something like that. Maybe there is a way to add custom lines or boot parameters to bios? I'll take better pics of the while menu layout tonight and post back tomorrow.