Some kernels are supported by the install packages supplied with Symantec AntiVirus for Linux (SAVFL), and Auto-Protect will function immediately. Some are not and require an extra, manual step. (See System requirements for Symantec AntiVirus for Linux 1.0 for details on kernels currently supported.) As of SAVFL version 1.0.8, it is possible to compile and install Auto-Protect kernel modules for Linux versions that are not otherwise supported by Symantec.
For details, consult the README that comes in the source tarball (e.g. ap-kernelmodule-1.0.10-26.tar.gz) for Auto-Protect.
The steps for Ubuntu can be summarized as follows:
Install the development tools for your particular Ubuntu version: