[gentoo-user] Installing grub2 in ext4 partition

[Grant Edwards]

A while back, I stumbled across a web page or blog entry that
explained how to safely use grub2 with it installed in a partition
instead of a device (e.g. grub is installed in /dev/sda10 instead of
/dev/sda).

IIRC, it involved locking a couple key files in the /boot/grub
directory so that they can't be moved or modified. This is required
because the grub code installed in the boot sector of the partition
uses a raw block list to find those key files (grub doesn't actually
understand the filesystem at that point).

I thought I had saved that info, but now I need it I can't find
it — and Google is unable to find the page again (perhaps it's gone).

Does this ring a bell with anybody?

--
Grant