I run an Intel D865perl motherboard with 2.6 gig Intel processor with 1 gig of ram. Two 250 gig hard drives. Kernel 2.6.9-42.0.2ELsmp.

I receive two error messages on bootup. Can anyone tell how to correct them.

#1 is PCI: Cannot Allocate Resource Region 0 of device 0000:00:00.0

I have seen this message for the last three kernels or so.

#2 is Bios Bug: Legacy-free FADT Detected, But FADT size (129) is incorrect.

This message just started with the new kernel 2.6.9-42.0.2 ELsmp

Anyone have any suggestions?

You have a motherboard newer then the kernel can handle correctly, time to build your own.

Get the latest 2.6.17.13 kernel from; http://kernel.org/

Review the details on how to rebuild a kernel; http://www.digitalhermit.com/linux/K...ild-HOWTO.html

The steps used to build a Red Hat family 2.6 series kernel differ slightly from the Kernel Rebuild Guide, the steps in order are;

make mrproper
make menuconfig
make
make modules_install
make install

It takes a bit of time to get the configuration right, take your time. It may benefit you to use the CentOS kernel-2.6.9-42.0.2.EL.src.rpm prepared kernel source as a side by side helpful resource. Trust me the building steps above work, been doing this for a while now;

$ cat /etc/*release
CentOS release 4.4 (Final)

$ uname -a
Linux Aspire5000 2.6.17.13 #1 Sat Sep 9 06:46:54 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux


FYI: the CentOS supplied kernel configuration file found in /boot named something like config-2.6.9-42.0.2EL will not work with a vanilla kernel.org kernel. Red Hat backports and make lots of other changes to the kernels they supply making them not 100% compatible. And yes I was your posting on the CentOS forums, I am the same Lenard here and there.

I guess I'm a little confused. The mother board is five years old. There has been no problems up until about 6 months ago with new kernel upgrades?

OK (sorry for the error about the motherboard) then maybe something with the new kernel is to blame....

Others are also experiencing differences with the latest RHEL 2.6.9-42X kernels*, with acpi (the FADT problem) and other hardware lelated issues, you might want go back to using an older kernel (one or more release levels). Or you might want to build your own as I suggested in my earlier reply.

I gave up using the Red Hat suppiled kernels when RHL9 first came out, because of hardware related issus (acpi issues being one of them). Been building and using the latest kernel.org kernels since then customized for my hardware and have not experienced any major issues since.

Currently have CentOS 4.4 (for the most part) installed on my two main systems running the latest compiled kernel (2.6.17.13) from kernel.org without problems.


BTW: what exactly is; device 0000:00:00.0 (hint: lspci -v)

* The changes are nurmous, the details for the 2.6.9-42 kernels (and hardware support) are here;

https://rhn.redhat.com/errata/RHSA-2006-0617.html
https://rhn.redhat.com/errata/RHSA-2006-0575.html

But it might be something related to udev and/or the pciuils also so it would be a good idea to check the errata about this also;

https://rhn.redhat.com/errata/rhel4es-errata.html

Also check the buzilla pages for your hardware/motherboard for possible soulutions;

https://bugzilla.redhat.com/bugzilla/index.cgi
http://bugs.centos.org/view_all_bug_page.php

Thank you I guess I'll give my first kernel rebuild a try.