+2. Update the kernel sources.
+
+If you are using a 2.2.x kernel (or a recent 2.1.x kernel), you do not
+need to do this step unless you need the synchronous HDLC support. If
+your kernel is already configured for PPP, then you only need to do
+steps 5 and 6. Otherwise, continue at step 3.
+
+If you are using a 2.0.x kernel, or you need the synchronous HDLC
+support, you need to update the kernel ppp driver to the version in
+this package. You will need a copy of the kernel source tree to do
+this. Issue the command: