8.2 Why Build a Custom Kernel?

Traditionally, MicroBSD has had what is called a ``monolithic'' kernel. This means that the kernel was one large program, supported a fixed list of devices, and if you wanted to change the kernel's behavior then you had to compile a new kernel, and then reboot your computer with the new kernel.

You have several reasons to build a new kernel:

• Your computer has a very small amount of RAM and you want to preserve as much as possible by removing device drivers you don't use
• You wish to remove default options or add options which may not have been enabled by default
• You wish to enable experimental options

This practice is generally geared towards knowledgeable users who have a good overall understanding of the system. Under most circumstances you will NOT need to compile your own kernel. The GENERIC kernel will usually be all that you need. In fact, there are several reasons why you do not want to create your own kernel. The main reason is that it is very easy to make changes to the kernel configuration which look logical, but do not work. This is your danger sign. If something does not appear to work properly, please try the GENERIC kernel or ask questions in our forums.

This, and other documents, can be downloaded from MicroBSD.

For questions about MicroBSD, read the documentation before contacting <MicroBSD Support>.
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