Problem under FC4 with Cisco VPN Client

When you ran the Cisco "vpn_install" script to build your cisco vpn module, are you sure you were running the

One problem that nailed me is that I ran vpn_install on a earlier kernel, then later updated my kernel source then reran the vpn_install. But what I didn't notice is that because I didn't delete all the old *.o files, GCC compiler just relinked the o files and made the cisco module. I couldn't run this module with the new kernel because the "vermagic" label in the kernel was still the one from the previous kernel.

You can run modinfo and check the vermagic, this is mine:

modinfo /lib/modules/2.6.14-mos/CiscoVPN/cisco_ipsec.ko filename: /lib/modules/2.6.14-mos/CiscoVPN/cisco_ipsec.ko license: Proprietary vermagic: 2.6.14-mos SMP K8 REGPARM gcc-4.0 depends: ^^^^^^^^^^

The "2.6.14-mos" should match the `uname -r` and on my box which is working with cisco vpn it does:

uname -r

If you try to install a module and the vermagic refers to a different kernel, then it will refuse to load it and say "invalid module format"

The solution is to make sure you clean out all the old object files and then recompile the cisco vpn module while running the kernel you're going to use it with.

Mark