Re: grub-mkconfig depends on grub-install?

[Mads Kiilerich]

Chris Murphy wrote, On 12/11/2012 01:00 AM:
> Does grub-mkconfig have any dependency on the things that grub-install or 
> grub-mkimage produces? I'm thinking of the case where a user has an existing 
> boot manager/loader, and they do not want a newer one replacing what they have. 
> But perhaps they still need a grub.cfg: e.g. Install Ubuntu, using its 
> installed GRUB2 and grub.cfg; subsequently installing Fedora to try out but 
> user doesn't want Fedora's installer overwriting Ubuntu's boot manager 
> experience.
>
> Is it possible to run grub-mkconfig within a chrooted Fedora post-install, 
> without first calling grub-install

Yes, there are dependencies. grub-install will for instance install 
fonts and themes in /boot/grub where grub-mkconfig will pick them up if 
they are available.

But each OS should have its own /boot, EFI systems should have their own 
bootloader-id, and BIOS systems can run grub-install with 
--grub-setup=/bin/true if it should stay away from MBR. That way they 
shouldn't clobber each other.

/Mads