Hi again,

I (more or less) succeeded in installing an AMD64-current (3.99.4) 
distrib on the workstation HP loaned me for a while. The nVidia nForce 4 
chipset is not very well handled, but that's not a big problem.

However, I have failed to properly boot the machine. Just after boot, it 
  simply keeps looping on a 'NetBSD MBR boot' message that it displays 
at libidum. Nothing to do. I've tried to tinker with the various boot 
files, no success so far.

Has anybody any idea ? The disk drives are two SCSI drives, they appear 
as sd0 and sd1 during install, and every partition can be mounted and 
read by the INSTALL kernel.

Thanks a lot
Vincent