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$Id: loader.4th.8,v 1.2 1999/05/03 07:25:50 jkoshy Exp $
Note: The date here should be updated whenever a non-trivial
change is made to the manual page.
.Dd April 25, 1999 .Dt LOADER.4TH 8 .Os .Sh NAME .Nm loader.4th .Nd loader.conf processing tools .Sh DESCRIPTION The file that goes by the name of .Nm is a set of commands designed to manipulate .Xr loader.conf 5 files. The default
a /boot/loader.rc includes .Nm and uses one of it's commands to automatically read and process the standard .Xr loader.conf 5 files. Other commands exists to help the user specify alternate configurations.
p The commands of .Nm by themselves are not enough for most uses. Please refer to the examples below for the most common situations, and to .Xr loader 8 for additional commands.
p Before using any of the commands provided in .Nm No , it must be included through the command:
p .Dl include loader.4th
p This line is present on the default
a /boot/loader.rc file, so it isn't needed (and should not be re-issued) in a normal setup.
p The commands provided by it are: l -tag -width disable-module_module -offset indent t Ic boot-conf Boot as specified by the .Xr loader.conf 5 files read. It uses c autoboot , so it can be stopped. t Ic start Reads
a /boot/defaults/loader.conf , all other .Xr loader.conf 5 files specified in it, and then proceeds to boot as specified in them. This is command used on the default
a /boot/loader.rc file, and it uses the
a autoboot command (see .Xr loader 8 ), so it can be stopped for further interaction with .Xr loader 8 . t Ic initialize Initialize the supporting library so commands can be used without executing c start first. Like c start , reads
a /boot/defaults/loader.conf and all other .Xr loader.conf 5 files specified in it. Returns a flag on the stack to indicate if any configuration file was succesfully loaded. t Ic read-conf Ar filename Reads and processes a .Xr loader.conf 5 file. Does not proceeds to boot. t Ic enable-module Ar module Enables the loading of .Ar module . t Ic disable-module Ar module Disables the loading of .Ar module . t Ic toggle-module Ar module Toggles the loading of .Ar module on and off. t Ic show-module Ar module Shows the information gathered in the .Xr loader.conf 5 files about the module .Ar module . t Ic retry Used inside .Xr loader.conf 5 files to specify the action after a module loading fails. t Ic ignore Used inside .Xr loader.conf 5 files to specify the action after a module loading fails. .El .Sh FILES l -tag -width /boot/loader.4th -compact t Pa /boot/loader The .Xr loader 8 . t Pa /boot/loader.4th .Nm itself. t Pa /boot/loader.rc .Xr loader 8 bootstrapping script. t Pa /boot/defaults/loader.conf File loaded by the c start command. .El .Sh EXAMPLES Standard
p d -literal -offset indent -compact include /boot/loader.4th start .Ed
p Loads a different kernel with the standard configuration:
p d -literal -offset indent -compact set kernel="kernel.old" unload boot-conf .Ed
p Reads an additional configuration file and then proceeds to boot:
p d -literal -offset indent -compact unload read-conf /boot/special.conf boot-conf .Ed
p Disable the loading of the splash screen module and bitmap and then proceeds to boot:
p d -literal -offset -indent -compact unload disable-module splash_bmp disable-module bitmap boot-conf .Ed
p .Sh SEE ALSO .Xr loader.conf 5 , .Xr loader 8 .Sh HISTORY .Nm first appeared in .Fx 3.2 . .Sh AUTHORS .Nm was written by .An Daniel C. Sobral Aq dcs@freebsd.org . .Sh BUGS A british espionage series.