wd0 not recognized with 6.99.8

[Riccardo Mottola <riccardo.mottola%libero.it@localhost>]

Hi,

I compiled today's kernel and modules, with a clean /usr/tools and 
/usr/obj directory.

Compilation appears fine, but when booting the new kernel, the root is 
not found and I am asked to select between network and cd. Dmesg doesn't 
seem to list my HD.

This is from the dmesg of 6.99.6 :
wd0 at atabus0 drive 0
wd0: <HTS421260H9AT00>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 57231 MB, 116280 cyl, 16 head, 63 sec, 512 bytes/sect x 117210240 
sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using 
DMA)
cd0(piixide0:0:1): using PIO mode 4, DMA mode 2 (using DMA)

I installed the modules as usual with the command:

./build.sh -O /usr/obj -T /usr/tools -U -u modules installmodules=/

Which worked fine for months.

Any suggestions?

Riccardo