> rik at harddata.com wrote: >> I am trying to install CentOS to a server that has a Tyan >> S2891 motherboard, 2 Opteron 875 Dual Cores and 2GB of RAM. >> I have been able trying to install over a network but the >> tg3 driver will not load. I then installed from a DVD and > on >> rebooting after the installation I cannot get the network >> drivers to load and the RAID controller in the PCI slot is > not >> available. >> It seems that when I do an lspci -tv the only a minimal >> amount of devices are seen. > > Yep, this has come up several times now (yet another thing to > add to the ELManagers FAQ) -- not all PCI busses are getting > enumerated and recognized for newer PCIe chipsets. > Especially the up to 8 PCIe masters in nForce Pro 2200+2050, > especially when there are also 2 more PCI-X channels c/o an > AMD 8131 as well. > > Remember, all AGP, PCI-X and PCIe busses/channels are, > virtually, enumerated as PCI logic. Today's new generation > of PCIe or PCIe+PCI-X have literally 6, 8 or even 10+ virtual > PCI busses/channels compared to only 2-4 of the legacy > AGP+PCI with optional PCI-X or two. > > First off, get the absolute latest BIOS. Most issues do get > resolved by it. This is something I have done. I will check again for a newer one. > > Secondly, try booting with a combination of ACPI/PCI kernel > parameters. Using "pci=bios" might solve the problem, > especially if you have the latest BIOS. I was playing with ACPI boot options as in the past they have fixed various errors but I will try this too. > > If you hit the archives regarding the Tyan S2895 (Thunder > K8WE), you'll find the boot-time option that person used (I > believe it was "pci=bios") Thank you for the helpful post. Rik