I was quite bored yesterday and having looked at the install guide recently
and seeing quite a few changes since the last time I did a completely new
install I thought I'd pound out a super simple Gentoo minimal stable
install as a VM in Virtualbox just to see how it went. I had no particular
problems with any of the build instructions. To build the kernel I used
'genkernel all' as an experiment. The boot loader is grub. I set almost
nothing by hand in my make.conf file. I have no USE flags. I had no obvious
problems following the install guide other than the machine didn't work.
(!!!) ;-)

When I boot the VM it appears to find the kernel and the initramfs, carries
on for a few seconds and stops at

Run /init as init process

where the boot process just hangs. In top on the host I see Virtualbox
spinning 1 CPU core at 100%.

QUESTIONS:

1) Anything obvious I should go back and check about the build? I've
remounted everything and chroot'ed in.

2) Because it says "Run /init" and not "Run /sbin/init" this problem is, I
assume, happening in the initramfs? I assume so as I don't see the drives
getting mounted, nor any messages about not finding the drives, etc. I know
very little about the details of the init process really. (So I'll get to
learn! Cool!)

3) Generically looking at a number of boot logs on the net it appears the
next thing it would have done would be to run udev and then start mounting
disks? Am I stuck in a bad initramfs or did I miss something about udev?

Thanks in advance,
Mark