all it takes for me on Fedora is to boot a modular distro kernel once,
then copy the /dev to the real (persistent) /dev:
mkdir /tmp2
mount /dev/sda1 /tmp2
cp -a /dev/* /tmp2/dev/
and from that point on a bzImage/vmlinuz can boot up on Fedora without
any problems (as long as it has the right drivers built in), and the
initrd line can be removed from grub.conf.
Ingo
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