Kernel not mounting root

[Marius Nünnerich]

Hi all,

I did cvsup to 7-STABLE yesterday, build, installed and booted a new
kernel then buildworld.
Then I noticed that my PS/2 keyboard is not working at the loader menu
so I booted multiuser and did the make installworld part from there.
Then I tried to reboot but now it hangs after the line
Trying to mount root from ufs:/dev/ad4s1a

It sits there for at least 10min. I tried so far:
- Installing 7.1-beta2 on another hd and booting it, it works.
- Copied that kernel to the old hd
- Moved kernel.old to kernel
- fsck everything
- mounted everything from the old hd under /mnt, chroot into that, installworld

Anyone else seeing this or has an idea what to do next?

Kind regards
Marius