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Well i was using Mint on dual boot with Witndos 10, so i wanted to remove Mint and install eOS with Windows. I've been trying to install for a long time using a DVD, but every time that i finish instalation a error message appears:

Unable to install grub in /dev/sda.
This is a fatal error.

Then i reboot my laptop and a grub rescue screen shows up. I tryed a lot of options but none of them worked. When the system is being loading a message shows and dissapear:

Couldn't get size: 0x800000000000000e MODSIGN: Couldn't get UEFI db list

I don't know what to do. I've already done this tutorial, but when get the line:

grub-install --recheck --no-floppy --force

The terminal says:

grub install error doesn't look like a efi partition

At the moment i already gave up of trying.

My laptop is a Lenovo G400s, BIOS doesn't have secure boot just UEFI, but now i am using Legacy mode. This link shows how my setup Bios is like.

  • I have seen this "error" before ... when the disk is created as a gpt rather than MS-DOS partition table ... – George Barbaz Feb 15 at 17:39
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After trying one more time, at beginning of installations , on menu to select which options of boot, there was three options to select, i just tried other option.

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