COLOR.4TH(8)            FreeBSD System Manager's Manual           COLOR.4TH(8)

NAME
     color.4th - FreeBSD color-detection boot module

DESCRIPTION
     The file that goes by the name of color.4th is a set of commands designed
     to simplify color logic.  The commands of color.4th by themselves are not
     enough for most uses.  Please refer to the examples below for the most
     common situations, and to loader(8) for additional commands.

     Before using any of the commands provided in color.4th, it must be
     included through the command:

           include color.4th

     This line is present in /boot/loader.4th file, so it is not needed (and
     should not be re-issued) in a normal setup.

     The commands provided by it are:

           loader_color?          Returns FALSE if the loader_color
                                  environment variable is set to "NO" (case-
                                  insensitive) or "0".  Otherwise returns TRUE
                                  (unless booting serial).

     The environment variables that effect its behavior are:

           loader_color
                     If set to "NO" (case-insensitive) or "0", causes
                     loader_color? to return FALSE, indicating to many modules
                     that color should not be used.

FILES
     /boot/loader      The loader(8).
     /boot/color.4th   color.4th itself.
     /boot/loader.rc   loader(8) bootstrapping script.

EXAMPLES
     Standard i386 /boot/loader.rc:

     Use color where applicable:

           loader_color="YES"

SEE ALSO
     loader.conf(5), loader(8), loader.4th(8)

HISTORY
     The color.4th set of commands first appeared in FreeBSD 9.0.

AUTHORS
     The color.4th set of commands was written by Devin Teske
     <dteske@FreeBSD.org>.

FreeBSD 13.1-RELEASE-p6         August 6, 2013         FreeBSD 13.1-RELEASE-p6