Once the system has finished booting, dbootstrap is invoked. The
first thing that dbootstrap asks about is your display. You should
see the “Select Color or Monochrome display” dialog box. If your
monitor is capable of displaying color, press Enter. The display
should change from black-and-white to color. Then press Enter again,
on the “Next” item, to continue with the installation.
If your monitor can display only black and white, use the arrow keys
to move the cursor to the “Next” menu item, and then press Enter to
continue with the installation.