Chris Adams wrote:
The rescue kernel is another option, right there on the boot menu; if you actually removed all running kernels, it would be the _only_ Fedora option (and the only option at all on a system without multiple OSes installed, so booted by default).
Not going to happen here, I use the nohostonly and norescue options to disable that nonsense "feature".
So removing all kernels will not only make the system unbootable for the lack of a kernel, but also leave grub.cfg with no kernel listed at all, and thus grubby without a template to write new kernel entries from, ergo I would not only have to reinstall the kernel from a rescue environment, but also manually fix grub.cfg! (Maybe grub2-mkconfig would be sufficient for that purpose these days though. In GRUB 1 days, it meant having to write the entry by hand!)
Kevin Kofler