Tom wrote: > Hi, > > I installed centos 4 on a P4, configured it (and it booted fine here) > then sent it to the DC to be put in a P3 but it won't boot, displays > GRUB and halts. > > The DC guys tried grub-install in rescue mode but still the same. > > Any clues? Is there some difference between P3 and P4? > > thanks > tom Application code compiled for a P4 (using full P4 optimizations) usually won't run on a P3, I suspect the same for kernels. I betcha you need to do the install again on the P3. I also betcha if you did the P3 1st & then moved that disk to the P4 it would work. Newer CPUs can usually run older code, but not vice-versa. YMMV & all that :-). -- William A. Mahaffey III --------------------------------------------------------------------- Remember, ignorance is bliss, but willful ignorance is LIBERALISM !!!!