HI Ralf I don't know what happened to my previous reply, I never got a copy (It was witten on my tablet because I was working in the house). Here is an approx copy. I have yet to learn much about a systemd-nspawn container but I'll try. I didn't nkow what syslinux was supposed to do but I'll research it now. Many thanks Steve > there are several possible reasons to get this error. One reason could > be installing grub, if you try it from a Linux running in a > systemd-nspawn container. IOW also mention from where you try to > install grub. > > Btw. a while back I migrated from grub to syslinux for my Linux > multi-boot machine, this means no Windows, no FreeBSD, no UEFI or > anything else, just several Linux installs. FWIW I'm still using MBR. I > like syslinux much better than grub, but it might not fit to the taste > of everybody. > > Regards, > Ralf