Ubuntu – Black screen after GRUB, can’t install. UEFI

grub2system-installationuefiwindows 8

I know there are tons of threads like this and I've tried everything i can think of that has been given as an answer in those threads.

The problem: I select the USB flash drive as my boot device, and it loads a GRUB menu, that says something like "Try Ubuntu without installing" "Install Ubuntu" "OEM Installation". I click any one of them, and I just get a black screen. I can control alt delete to restart, so my PC is not hanging.

If i change UEFI mode to Legacy in the BIOS, then it SKIPS the GRUB menu and goes straight to a graphical ubuntu installer.

I need to install as UEFI as my Windows 8 installation is as such. I can't boot it if it's set to legacy.

Note that Secure Boot and UEFI are different in my bios, I can disable secure boot without disabling UEFI. However, i still get the black screen.

Things I've tried:

1) nvidia.modeset = 0
2) GRUB_GFXMODE = 1024x768x32
3) GRUB_GFXMODE=vga=vesa
4) vga=vesa
5) A different monitor via hdmi
6) A different monitor via vga
7) Different formats of my flash drive
EDIT: Some more things i've tried
8) Confirmed md5 is correct
9) Downloaded Linux Secure Remix 12.10, no difference.
10) Tried drm_kms_helper.poll = 0
11) Tried acpi_osi=Linux
12) Tried acpi_backlight=vendor

Nothing works yet.

NONE of these work, I still get the black screen.

My laptop is a MSI GE-70 with the following specs:
Intel i7 3630QM
Nvidia GTX-660M with Optimus GDDR5
OS: Windows 8 installed as UEFI.

I believe this NOT to be a duplicate since I have tried EVERYTHING i can find, and nothing seems to work.

Does anyone have any idea what it could be?

Best Answer

I installed it via legacy mode. I could not get it to install via UEFI.

However, I patched the install once booted, thus enabling it to be booted in UEFI, by doing this:

Converting Ubuntu into UEFI mode

Note: Do not follow this procedure if your computer is already booting correctly. Use this procedure only if you believe you've accidentally installed Ubuntu in BIOS/CSM/legacy mode and you want it to boot in UEFI/UEFI mode.

  1. Start Boot-Repair, click on "Advanced options", go to the "GRUB location" tab.
  2. If you do not see a "Separate /boot/efi partition" line, this means that your PC does not have any UEFI partition. In this case, exit Boot-Repair, then create an UEFI partition (see the "Creating an UEFI partition" paragraph above).
  3. If you see a "Separate /boot/efi partition" line, tick it then click the "Apply" button.
  4. Set up your BIOS so that it boots the HDD in UEFI mode (see the ""Set up the BIOS in UEFI or Legacy mode" paragraph above).

From http://help.ubuntu.com/community/UEFI.

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