On 3/5/2017 5:24 μμ, Nikolaos Milas wrote: > Using the supergrub2 disk I can boot and login successfully. Otherwise > (i.e. directly) the box won't boot. In the meantime, I also tried rescatux (https://sourceforge.net/projects/rescatux/) repair disk; it failed as well. The situation remains the same. How can we fix this cloned CentOS 7 installation to become bootable? Please advise! Thanks, Nick