-# Look for the kernel first. This is very unsophisticated: We
-# just look for any kernel named vmlinuz-*.$host_cpu which has a
-# corresponding /lib/modules/*.$host_cpu directory.
+# Kernel:
+# Look for the most recent kernel named vmlinuz-*.<arch>* which has a
+# corresponding directory in /lib/modules/. If the architecture is x86, look
+# for any x86 kernel.
+#
+# RHEL 5 didn't append the arch to the kernel name, so look for kernels
+# without arch second.