On Mon, 2008-02-18 at 16:00 +0100, Tim Verhoeven wrote:

On Feb 18, 2008 3:42 PM, Simon Jolle urandomdev@gmail.com wrote:

...

I am running Centos 4.6 wit latest updates. For I/O multipathing I need to use kernel 2.6.9-55 (IBM support matrix). Trying to compile Engenio Linux RDAC Driver[0]

I fail to install kernel-devel for this exact kernel (with up2date). Up2date always installs the newest.

# make clean make V=1 -C/lib/modules/2.6.9-55.ELsmp/build M=/root/tmp/linuxrdac-09.02.B5.15 MODVERDIR=/lib/modules/2.6.9-55.ELsmp/build/.tmp_versions SUBDIRS=/root/tmp/linuxrdac-09.02.B5.15 clean make: *** /lib/modules/2.6.9-55.ELsmp/build: No such file or directory. Stop. make: *** [clean] Error 2

# ls -al /lib/modules/2.6.9-55.ELsmp/build ls: /lib/modules/2.6.9-55.ELsmp/build: No such file or directory

# uname -r 2.6.9-55.ELsmp

# rpm -q kernel-devel kernel-devel-2.6.9-67.0.4.EL.x86_64

Either install the 2.6.9-55 kernel-devel package. You can provide the version number with yum install. Or just use the latest kernel. In the past I've run the RDAC modules on so called "not-supported" kernels. Usually newer kernels then the one mentioned. I never had any issues with it.

Regards, Tim

+1 : i've used mpp/rdac on different CentOS 4.x kernels (including a setup i've made last week) including latest 4.6 errata kernels and i had no problems .. so why stick with an old kernel ?