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.
Navigation Keys
- 上矢印: highlight previous link
- 下矢印: highlight next link
- 左矢印, Backspace: return to previous topic
- 右矢印, Enter, スペース: follow link
- Page Up: scroll up one page
- Page Down: scroll down one page
- Home: go to page start
- 終了: go to page end
- Esc: leave help