Grub4dos
  1. Grub4dos Windows 10
  2. Grub4dos Windows 10 Update
Grub4dos

Jan 21, 2018 - I created a dual boot laptop with Windows 10 and Mint 18.3 xfce. I followed the video instructions, and everything went well. But when I reboot. GRUB4DOS is a bootloader that can be installed by a linux operating system or a Windows operating system and dos and also other OSes. It has compatibility with Grub but it can also be installed on non-linux NTFS/FAT filesystems which are more common on Windows preinstalled PC's.

Grub4dos Windows 10

Installer

My setup is a two disk (both GPT partitioned) setup where disk 1 is windows 10 and disk 2 is ubuntu 15.04. Windows was installed first, then ubuntu, both in UEFI mode. The ubuntu drive is a removable hard drive, and I noticed that when it is not connected, grub would not fully load to show me a list of operating systems.

Grub4dos Windows 10 Update

I restored the windows 10 bootloader and added an entry pointing to /EFI/ubuntu/grubx64.efi. This file was located on the disk 1 EFI partition. However when I select this entry on startup, the windows bootloader tells me that windows failed to start because files are missing. I loaded ubuntu again and installed grub using boot-repair to the disk 2 EFI partition to see if that would work. I added an entry in the windows bootloader to grubx64.efi on disk 2 but ended up with the same failure. Is it possible to load Grub from the windows 10 bootloader or is it possible to load grub without requiring disk 2 to be connected?