Can't boot from ad4: Device Not Configured?

[Tim Kientzle]

I'm trying to move my drives from
the slow built-in IDE controller to
a faster PCI card (Promise ULTRA TX2).
The boot loader succesfully loads the
kernel, and the kernel succesfully probes
the Promise controller and the hard
disk connected to it.

But the root mount fails with error 6,
even after I type in "ufs:/dev/ad4s1a"

I looked through the kernel config files
and LINT and could find nothing that
seemed relevant.

Any advice gratefully appreciated.

Tim Kientzle