### 使用帮助系统

The boot loader online help is context sensitive. It gives information about the selected menu item or, if you are editing boot options, it tries to look up information about the option in which the cursor is positioned.

导航键

- 向上箭头: highlight previous link
- 向下箭头: highlight next link
- 向左箭头, Backspace: return to previous topic
- 向右箭头, Enter, Space: follow link
- Page Up: scroll up one page
- Page Down: scroll down one page
- Home: go to page start
- End: go to page end
- Esc: leave help