Today i just received a new internal hard Hard drive for my HP Elitebook 840 G2So i installed Ubuntu 14.04LTS, the installation was successful then i rebooted and i see no grub and Ubuntu not starting.It  tells me i dont have an operator system installed.The only way to start to start Ubuntu for me is to go in the menu EFI/boot/grubx64.efi and press enter into this.Same things for Linux Mint.I would like to know how to install Ubuntu or Mint and having the grub ?
No grub after installing ubuntu 14 or mint 17
ubuntu;grub