I don't know what Dimitri's comment refers to. As far as I'm concerned this is already well-defined, and you're correct that the curtin piece is simply enforcing that both shim-signed and grub-pc get installed (and the grub install to disk is triggered for both).
I don't know what Dimitri's comment refers to. As far as I'm concerned this is already well-defined, and you're correct that the curtin piece is simply enforcing that both shim-signed and grub-pc get installed (and the grub install to disk is triggered for both).