Comment 27 for bug 75681

I have been dealing with this for a while now, and it's a udev problem.

Check out the following:
https://launchpad.net/bugs/90657
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=403136

I have four identical SATAs, and sometimes the sd[a,b] device nodes fail to show up, and sometimes they don't but are lagged, sometimes it's sd[dc]...

I have to boot with break=premount and cobble things together manually, then exit the shell and let it boot.