I tried to clone my boot drive (osx High Sierra) on to Samsung SM951 (pcie AHCI) drive using CCC. However for some reason I got error message when I was trying to create Recovery Hd on that drive. Is there any simple way to create Recovery HD without reinstalling osx? I think I read some where one can create Recovery volume using Terminal but I can't find it. I'll appreciate if you could give me step by step instructions to create Recovery HD. Thanks