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[SOLVED] UEFI and GPT, doesn't work for me on ASUS P8P67 PRO

post #1 of 5
Thread Starter 
Hey guys,

I've recently decided to reinstall Linux on my SSD and use that as my primary OS. While doing that, I had to decide on a new bootloader, and found you had something called EFISTUB booting which completely skips the bootloader, which basically means that the kernel is being started directly from UEFI.

Now, some might think, "but gonX, why would you post this in Intel Motherboards when it's a Linux question?", HA! fooled!
My real problem is: my BIOS does not see any UEFI data from my SSD, so I can't select to boot from EFI. That is even though that:
- My SSD is GPT formatted
- The first partition on my drive is 100MB, FAT32 formatted, have had a (working) .efi file in both the root and /efi neither of which worked, and is set to EF00 (also known as "boot").
What do I do?

On the contrary I've used an MBR formatted disk that got recognized as an UEFI device because I put the Arch Linux install CD on it, so it's not like the motherboard's UEFI section is totally fried.

Regards.
gonX

SOLUTION FOUND: See THIS thread
Edited by gonX - 5/11/12 at 6:12am
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post #2 of 5
Quote:
Originally Posted by gonX View Post

Hey guys,
I've recently decided to reinstall Linux on my SSD and use that as my primary OS. While doing that, I had to decide on a new bootloader, and found you had something called EFISTUB booting which completely skips the bootloader, which basically means that the kernel is being started directly from UEFI.
Now, some might think, "but gonX, why would you post this in Intel Motherboards when it's a Linux question?", HA! fooled!
My real problem is: my BIOS does not see any UEFI data from my SSD, so I can't select to boot from EFI. That is even though that:
- My SSD is GPT formatted
- The first partition on my drive is 100MB, FAT32 formatted, have had a (worked) .efi file in both the root and /efi neither of which worked, and is set to EF00 (also known as "boot").
What do I do?
On the contrary I've used an MBR formatted disk that got recognized as an UEFI device because I put the Arch Linux install CD on it, so it's not like the motherboard's UEFI section is totally fried.
Regards.
gonX
What distro are you installing? I saw you mentioned Arch Linux, so for that some good resources are:
https://wiki.archlinux.org/index.php/Unified_Extensible_Firmware_Interface
https://bbs.archlinux.org/viewtopic.php?id=129885

Now, booting the kernel directly from UEFI is a different story, so I think the Arch Linux UEFI article may help there because it talks about EFI_STUB.
post #3 of 5
Thread Starter 
Yup, I already went through those, and I've reread all those multiple times. My problem is not booting a kernel using EFISTUB, since I can easily do that with the USB drive I talked about, but that is MBR formatted rather than GPT formatted. I really just want to know if somebody has successfully been able to boot through UEFI with a GPT formatted partition on the P8P67.

My distro is already installed, and it works fine. I just can't get GPt booting to work, so I'm stuck booting through BIOS-MBR from my old harddrive.
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#well
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post #4 of 5
Thread Starter 
Bump
#well
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#well
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Lenovo L530
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post #5 of 5
Thread Starter 
Fixed, apparently you need to write settings to the UEFI bootloader for internal drives to work properly.
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#well
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Lenovo L530
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CPUMotherboardGraphicsRAM
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