-# Look for any kernel named vmlinuz-*.$host_cpu* which has
-# a corresponding /lib/modules/*.$host_cpu* directory.
-# However by sorting on reverse version (ls -vr) we ensure
-# we choose the newest kernels.
+# 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.