Editing Menus During Boot

• If the menu is not normally displayed during boot, hold down the SHIFT key as the computer attempts to boot to display the GRUB 2 menu.

• With the menu displayed, press any key (except ENTER) to halt the countdown timer and select the desired entry with the up/down arrow keys.

• Press the 'e' key to reveal the selection's settings.

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• Use the keyboard to position the cursor. In this example, the cursor has been moved so the user can change or delete the numeral 9.

• Make a single or numerous changes to any or every line. Do not use ENTER to move between lines.

• Tab completion is available, which is especially useful in entering kernel and initrd entries.

• When complete, determine the next step:
  • CTRL-x - boot with the changed settings (highlighted for emphasis).
  • c - go to the command line to perform diagnostics, load modules, change settings, etc.
  • ESC - Discard all changes and return to the main menu.
  • The choices are listed at the bottom of the screen as a reminder.