Booted with a self compiled kernel a system running 10.1beta1 doesn't 
mount file systems on LVs at boot. 

The problem seems to be that when the vgscan in boot.lvm runs the /dev 
in tmpfs is only very sparsely populated and missing most of the block 
devices. Without block devices vgscan doesn't find the volume group. 
Previously the problem was hidden because /dev was on disk and the block 
device nodes needed by vgscan were there anyways from the previous boot.

While I can only reproduce it with a self compiled non modular kernel
right now I suspect the race is there with the modular rpm too and
will break something eventually.

I work arounded it here by adding a sleep 3 on top of boot.lvm,
but it's not a full or good solution of course.