Good Day. I'm trying to install dual boot elementary (with Win) on my PC on EFI system. Problem is that I first installed Win that created Recovery partition (on /dev/sda1) and Boot Partition (/dev/sda2). But when I specify in partitioning window: "Device for boot loader installation" as "/dev/sda2". I'm getting: "The attempt to mount a file system with type vfat in SCSI5 (0,0,0), partition #1 (sda) at /boot/efi failed" Which is Windows Recovery Partition. How to convince installer to mount partition #2 at /boot/efi instead of partition #1. --EDIT-- Found out solution. Problem was that Windows automatically mark Recovery partition as "bootable". All you need is to remove that flag with partitioning program (e.g. GParted).