CentOS - Dec 2007 - problems building appletalk module with new kernel

I've been doing this on CentOS 4 and CentOS 5 but after installing
2.6.18-53.1.4el kernel, I'm having a bit of a struggle...

# make -C /lib/modules/2.6.18-53.1.4.el5/build \
  SUBDIRS=/usr/src/appletalk modules
make: Entering directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'
  CC [M]  /usr/src/appletalk/aarp.o
  CC [M]  /usr/src/appletalk/ddp.o
  CC [M]  /usr/src/appletalk/dev.o
  CC [M]  /usr/src/appletalk/atalk_proc.o
  CC [M]  /usr/src/appletalk/sysctl_net_atalk.o
  LD [M]  /usr/src/appletalk/appletalk.o
  Building modules, stage 2.
  MODPOST
  CC      /usr/src/appletalk/appletalk.mod.o
  LD [M]  /usr/src/appletalk/appletalk.ko
make: Leaving directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'

# make -C /lib/modules/2.6.18-53.1.4.el5/build \
  SUBDIRS=/usr/src/appletalk modules_install
make: Entering directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'
  INSTALL /usr/src/appletalk/appletalk.ko
  DEPMOD  2.6.18-53.1.4.el5
make: Leaving directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'

and here is my problem...
# insmod /lib/modules/2.6.18-53.1.4.el5/extra/appletalk.ko
insmod: error inserting
'/lib/modules/2.6.18-53.1.4.el5/extra/appletalk.ko': -1 Invalid module
format

The above reflects an adjustment in my Makefile but it didn't seem to
help

why all of a sudden, this 'Invalid module format' ?

Craig

my Makefile that I have been using for quite some time but not the one
used above is...
#
# Makefile for the Linux AppleTalk layer.
#

CONFIG_ATALK=m

obj-$(CONFIG_IPDDP) += ipddp.o
obj-$(CONFIG_COPS) += cops.o
obj-$(CONFIG_LTPC) += ltpc.o

On Dec 25, 2007 9:47 AM, Craig White <craigwhite at azapple.com>
wrote:
> I've been doing this on CentOS 4 and CentOS 5 but after installing
> 2.6.18-53.1.4el kernel, I'm having a bit of a struggle...
>
> # make -C /lib/modules/2.6.18-53.1.4.el5/build \
>   SUBDIRS=/usr/src/appletalk modules
> make: Entering directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'
>   CC [M]  /usr/src/appletalk/aarp.o
>   CC [M]  /usr/src/appletalk/ddp.o
>   CC [M]  /usr/src/appletalk/dev.o
>   CC [M]  /usr/src/appletalk/atalk_proc.o
>   CC [M]  /usr/src/appletalk/sysctl_net_atalk.o
>   LD [M]  /usr/src/appletalk/appletalk.o
>   Building modules, stage 2.
>   MODPOST
>   CC      /usr/src/appletalk/appletalk.mod.o
>   LD [M]  /usr/src/appletalk/appletalk.ko
> make: Leaving directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'
>
> # make -C /lib/modules/2.6.18-53.1.4.el5/build \
>   SUBDIRS=/usr/src/appletalk modules_install
> make: Entering directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'
>   INSTALL /usr/src/appletalk/appletalk.ko
>   DEPMOD  2.6.18-53.1.4.el5
> make: Leaving directory `/usr/src/kernels/2.6.18-53.1.4.el5-i686'
>
> and here is my problem...
> # insmod /lib/modules/2.6.18-53.1.4.el5/extra/appletalk.ko
> insmod: error inserting
> '/lib/modules/2.6.18-53.1.4.el5/extra/appletalk.ko': -1 Invalid
module
> format
>
> The above reflects an adjustment in my Makefile but it didn't seem to
> help
>
> why all of a sudden, this 'Invalid module format' ?
>
> Craig
I was able to build and install appletalk.ko under 2.6.18-53.1.4.

What do you see with:

/sbin/modinfo /lib/modules/2.6.18-53.1.4.el5/extra/appletalk.ko

Does the vermagic agree with your running kernel?  Also, where did you
get the source for appletalk?  Is that the stuff from net/appletalk in
your kernel's source tree?

Another option may be to follow the wiki:

http://wiki.centos.org/HowTos/BuildingKernelModules

Akemi