The Loader Prompt
The loader prompt is a small computing environment that allows you to make basic changes to your computer's boot environment and the variables that must be configured early in the boot process. When you escape to a loader prompt (option 6 in the boot menu), you'll see the following:
This is the loader prompt. While the word OK might be friendly and reassuring, it's one of the few friendly things about the loader environment. This is not a full-featured operating system; it's a tool for configuring a system boot which is not intended for the ignorant nor the faint of heart. Any changes you make at the loader prompt only affect the current boot. To undo changes, reboot again. (We'll see how to make loader changes permanent in ...