New HOWTO: The Linux Kernel HOWTO - page 10
Table of Contents
9. Note for upgrade to version 2.0.x, 2.2.x
Kernel versions 2.0.x and 2.2.x introduced quite a bit of changes for
kernel installation. The file Documentation/Changes in the 2.0.x
source tree contains information that you should know when upgrading
to either of these versions. You will most likely need to upgrade
several key packages, such as gcc, libc, and SysVInit, and perhaps
alter some system files, so expect this. Don't panic, though.