Configuring devices with Debian GNU/Linux
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4. Troubleshooting

Unfortunately, there are some cases when things do not go smoothly.

4.1. Trouble at the compilation

In case you have problem compiling your modules:

Do you have all the tools required ? (make, gcc, make-kpkg, etc...)
Do you have the correct headers installed ? (kernel headers, but also standard libc headers, etc...)
have you checked that module X didn't need the source of module Y (header files, actually) to be successfully compiled ? If so download module Y's source, and try again.

4.2. Unresolved symbols

A grand classic.

The module you're trying to load can't find some functions it needs. That means: you haven't run 'depmod' or you lack a module.

If running 'depmod' doesn't solve your problem, read the doc again, and check that you have all the other modules that are needed.

4.3. Can't locate module char-major-xx

Another classic.

You need to add the corresponding 'alias' in /etc/modutils, or compile the module if it's not available.

Some aliases are defined by default in /etc/modutils/aliases. If you know what you're doing you can disable them there.

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