Windows 10: Dual BOOT with Linux on ext3 and GPT + UEFI

Have two SSDs, one for W10 Insider and on other one I just reinstalled Linux Mint with UEFI and GPT partition(s).







While both were in "normal legacy BIOS" way, non-UEFI I was able to make it dual BOOT but now my favorite, EasyBCD can't make working BOOT menu but now:



I used Ext2 File System Driver for Windows download | SourceForge.net to mount EFI (Fat32) and GPT Linux partitions but choosing any of them doesn't let me BOOT Mint fro BOOT menu. It works fine when booted thru BIOS.




:)

 

Grub 2 does not detect windows partition by osprober

Dear Don Cuthbert,

Thanks for your help.Since I was used to first dos partition to boot either windows or linux in dual boot on bios systems I thought UEFI just records the address to point to windows or linux sector for booting. Thought Microsoft system bootloader partiton contains
all files for booting and rest of files in windows 10 basic partition. As linux hanged on upgrade from Fedora 26 to Fedora 27 I wanted to delete UEFI which I thought is a UEFI linux loader as I am used to efibootmgr in Fedora and wondering why the osprobe
is not recognising windows.My basic thinking for GPT UEFI was wrong as I thought it just records the pointer to windows or linux.

But now you made the concept clear. Now I am sure I will be able to dual boot windows 10 and Fedora 27 with this help.

Really appreciate your help.

Dr Nagalkar

 

Can Windows Boot Manager boot Linux in UEFI system with GPT M.2 disk?

There are other boot managers, but I like Windows Boot Manager and boot to Windows 10 most of the time. Back when I had a BIOS system with a MBR SSD, dual boot was as easy as EasyBCD. Note that I have and want true GPT, not the hybrid kind-of-have-an-MBR
on a GPT disk.

After a lot of work, I got Windows 10 to boot on this system with just copying partitions and not a clean install. But, the Linux partition right now is just a copy of what was on the SSD. I can't boot to it, although I might if I chose to use rEFInd or
GRUB2 as a boot manager. All the Linux advice I can find predates Windows 10 and says Windows Boot Manager can't do this on GPT drives. I'm looking for an answer from 2016.

For the sake of this question assume Secure Boot and Fast Boot are non issues. If it matters, my preferred Linux distro is Ubuntu 14.04. My processor is from the Skylake family: i7-6700.