Jakub, if it's still relevant, I faced with exactly same problem during Debian installation on Terramaster F5-421, grub-install fails with same messages. I wonder if there's any workaround possible.
On Sun, 27 Oct 2019 23:29:28 +0000 Jakub Filo <[email protected]> wrote: > Hello, > > I would like to ask, what firmware is this happening on? Any chance it's > OVMF? > > > Best Regards, > Jakub Filo > > >
