Hi Keith, thanks for your detailed reply. I haven't tried this yet.. What I have done is follow this tutorial to build the latest kernel (http://wiki.centos.org/HowTos/Custom_Kernel) which in the end game me an rpm of it for installation however when it came to install the rpm the follow was displayed; package kernel-2.6.18-194.8.1.el5.x86_64 is already installed file /boot/.vmlinuz-2.6.18-194.8.1.el5.hmac from install of kernel-2.6.18-194.8.1.el5.x86_64 conflicts with file from package kernel-2.6.18-194.8.1.el5.x86_64 file /boot/System.map-2.6.18-194.8.1.el5 from install of kernel-2.6.18-194.8.1.el5.x86_64 conflicts with file from package kernel-2.6.18-194.8.1.el5.x86_64 file /boot/config-2.6.18-194.8.1.el5 from install of kernel-2.6.18-194.8.1.el5.x86_64 conflicts with file from package kernel-2.6.18-194.8.1.el5.x86_64 file /boot/symvers-2.6.18-194.8.1.el5.gz from install of kernel-2.6.18-194.8.1.el5.x86_64 conflicts with file from package kernel-2.6.18-194.8.1.el5.x86_64 file /boot/vmlinuz-2.6.18-194.8.1.el5 from install of kernel-2.6.18-194.8.1.el5.x86_64 conflicts with file from package kernel-2.6.18-194.8.1.el5.x86_64 However none of these files exist in /boot? [nf5002 at eros ~]$ ls -la /boot total 5727 drwxr-xr-x 4 root root 1024 Aug 9 12:04 . drwxr-xr-x 25 root root 4096 Aug 9 11:46 .. -rw-r--r-- 1 root root 62395 Jun 11 2008 config-2.6.18-92.el5 drwxr-xr-x 2 root root 1024 Aug 9 11:34 grub -rw------- 1 root root 2544058 Oct 27 2008 initrd-2.6.18-92.el5.img drwx------ 2 root root 12288 Oct 27 2008 lost+found -rw-r--r-- 1 root root 80032 Nov 22 2007 message -rw-r--r-- 1 root root 92749 Jun 11 2008 symvers-2.6.18-92.el5.gz -rw-r--r-- 1 root root 1162656 Jun 11 2008 System.map-2.6.18-92.el5 -rw-r--r-- 1 root root 1859484 Jun 11 2008 vmlinuz-2.6.18-92.el5 This must some how relate to the fact the boot is on a different device, so where does CentOS think /boot is? I mean, the system is booting, has been for a few years so its working? If I unmount /boot I can't ls /boot, its empty? [nf5002 at eros ~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 28G 8.3G 18G 33% / /dev/sdb1 119M 12M 103M 10% /boot /dev/sda2 is a 3.3TB ext4 partition, so /dev/sda uses GPT hence /boot being on a seperate device. -- Regards, James. http://www.jamesbensley.co.cc/ There are 10 kinds of people in the world; Those who understand Vigesimal, and J others...?