Installed ubuntu with erase disk and cant boot. no grub

Question

tried boot-repair. URL from that is: http://paste.ubuntu.com/14673632

thanks

Answer 1

Reinstall the GRUB boot loader this way :
Boot from Ubuntu installation media.
Open a terminal and execute :

sudo mount /dev/sda2 /mnt
sudo mount /dev/sda1 /mnt/boot/efi
for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done
sudo chroot /mnt
grub-install /dev/sda
update-grub  

Note : sda = disk | sda1 = EFI partition | sda2 = system partition

In case Ubuntu still does not boot - maybe you have to select Ubuntu as default system in BIOS, because there still is Windows boot loader (Microsoft folder) installed on the EFI partition sda1.