-%define kernel_id_arch %{kernel_version}-%{kernel_release}-%{kernel_arch}
-%define kernel_id %{kernel_version}-%{kernel_release}
+
+# guess which convention is used; k27 and before used dash, k32 uses dot
+%define kernelpath_dash /usr/src/kernels/%{kernel_version}-%{kernel_release}-%{kernel_arch}
+%define kernelpath_dot /usr/src/kernels/%{kernel_version}-%{kernel_release}.%{kernel_arch}
+%define kernelpath %( [ -d %{kernelpath_dot} ] && echo %{kernelpath_dot} || echo %{kernelpath_dash} )
+
+# the k32 kernel currently builds e.g. /lib/modules/2.6.32-0.onelab.2010.12.07-i686
+# the k27 and before does not have the -i686 part
+%define kernel_id_old %{kernel_version}-%{kernel_release}
+%define kernel_id_new %{kernel_version}-%{kernel_release}.%{_target_cpu}
+%define kernel_id %( [ -d %{kernelpath_dot} ] && echo %{kernel_id_new} || echo %{kernel_id_old} )