John, Was there a reason for the (2) make oldconfigs? just curious This all worked rpm -i kernel.XXX.src.rpm cd /usr/src/redhat/SPECS rpmbuild -bp --target i686 kernel.XXX.spec cd /usr/src/redhat/BUILD/kernel-2.6.9/linux-2.6.9 make mrproper cp /boot/config-2.6.9-11.EL .config make oldconfig make oldconfig make menuconfig Device Drivers -> Character Devices -> Serial Drivers change Max number of non legacy 8250_NR_UARTS to 36 make bzImage make modules make modules_install make install On Tue, 2005-06-14 at 12:23 -0500, Jerry Geis wrote: >/ Still no go.... />/ />/ I have downloaded the SRC rpm for kernel-2.6.9-11.EL.src.rpm />/ <http://mirror.centos.org/centos/4.1/os/SRPMS/kernel-2.6.9-11.EL.src.rpm> />/ I did rpm -i kernel....src.rpm />/ cd /usr/src/redhat/SPECS />/ rpmbuild -bp --target i686 kernel.xxx.src.rpm />/ cd /usr/src/redhat/BUILD/kernel.XXX/linux.XXX />/ make bzImage />/ make modules_install />/ make install />/ />/ When I reboot I get the same error about />/ />/ "mount: error 19 mounting ext3" />/ />/ Where should I go from here? / Go into the directory ... do: make mrproper cp /boot/config-xxxx . make oldconfig make oldconfig make menuconfig (adjust what you want) make bzImage make modules make modules_install make install