Got the problem with my personal mini server/mediacenter with 18.04.1 -server-amd64.iso (not live, that one look to don't support the EUFI)
MSI B450I Gaming AC plus Ryzen3 2200G 16Go Mem Samsung M2 Drive (main installation) Installed from Kingston USB Drive I will try the "waiting" method.. Waiting in process... (Before that, didn't get any problem on the Fedora 29 Server installation) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1663645 Title: Installation hangs at 66% "Installing GRUB boot loader" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1663645/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs