Hi Venkat, After copying the module into the /lib/module/uname -r/drivers/pci/ you should perform depmod -a This will rebuild the module dependency and re-link the module to the kernel. Also verify using lspci command if you motherboard has the support for AHCI For applying the patch first you always run #patch --dry-run -p1 < patchfile This command dose not apply the patch but verify the patch file are updated correctly. If no rejection of patch then we can apply the patch. #patch -p1 < patchfile -Anand Moon On Monday, December 9, 2013 3:56 PM, Venkat Swaminathan <venkat.s@vortexindia.co.in> wrote: Currently i am trying to work with my kernel : I am trying to make my chipset(ICH7 - M) to support AHCI in my debian 6 (linux-source-2.6.32). With mentioned link's ref :http://tartarus.org/~ds/quirk-ich-force-ahci.patch <http://tartarus.org/~ds/quirk-ich-force-ahci.patch> i cooked the quirk.c in my work machine and compiled the KERNEL make SUBDIRS=drivers/pci/ and make module SUBDIRS=drivers/pci/ After successful compilation i copied the "pci-stub.ko" from linux-source-2.6.32/drivers/pci to test machine's :"/lib/modules/2.6.32-5-686/kernel/drivers/pci" path and then set quirks.ich_force_ahci=1 in /etc/grub/grub.conf and rebooted the system But after reboot my IDE is using ata_PIIX driver not AHCI driver. Don't know what is error.request some guidance on applying the patch Regards Venkat.S _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies