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31 .Nd system bootstrap configuration information
34 .Nd localized system bootstrap configuration information
38 contains descriptive information on bootstrapping the system. Through
39 it you can specify the kernel to be booted, parameters to be passed to
40 it, additional modules to be loaded, and generally set all variables
46 must contain the following two lines for
48 to be automatically processed:
50 .Dl include /boot/loader.4th
55 exists at installworld time, one with the above lines will be installed.
58 .Nm loader.conf Ns No 's
59 format was defined explicitly to resemble
63 some settings are treated in a special fashion. Also, the
64 behavior of some settings depends only on it's suffix.
66 The general parsing rules are:
69 Spaces and empty lines are ignored.
71 A # sign will mark the remaining of the line as a comment.
73 Only one setting can be present on each line.
76 All settings have the following format:
80 Unless it belongs to one of the classes of settings that receive special
81 treatment, a setting will set the value of a
83 environment variable. The settings that receive special
84 treatment are listed below. The ones beginning with a
86 define the modules to be loaded and
87 may have any prefix. All such settings sharing a common
88 prefix refer to the same module.
91 Immediately executes a
93 command. This type of setting cannot be processed by programs other
96 so it's use should be avoided. Multiple instances of it will be processed
98 .It Ar loader_conf_files
99 Defines additional configuration files to be processed right after the
102 Name of the kernel to be loaded. If no kernel name is set, no additional
103 modules will be loaded.
104 .It Ar kernel_options
105 Flags to be passed to the kernel.
106 .It Ar verbose_loading
109 the modules' names will be displayed as they are loaded.
113 that module will be loaded. If no name is defined (see below), the
114 module's name is taken to be the same as the prefix.
116 Defines the name of the module.
118 Defines the module's type. If none is given, it defaults to a kld module.
120 Flags and parameters to be passed to the module.
122 Commands to be executed before the module is loaded. Use of this setting
125 Commands to be executed after the module is loaded. Use of this setting
128 Commands to be executed if the loading of a module fails. Except for the
131 which aborts the bootstrap process, use of this setting should be avoided.
135 .Nm loader.conf Ns No 's
136 default settings can be ignored. The few of them which are important
138 .Bl -tag -width bootfile -offset indent
143 a bitmap will be loaded to be displayed on screen while booting.
145 .Pq Dq /boot/splash.bmp
146 Name of the bitmap to be loaded. Any other name can be used.
149 .It Va loader_conf_files
150 .Pq Do /boot/loader.conf /boot/loader.conf.local Dc
151 .It Va splash_bmp_load
155 will load the splash screen module, making possible to display a bitmap
156 on the screen while booting.
157 .It Va userconfig_script_load
161 will load the userconfig data.
166 the vesa module will be loaded, enabling bitmaps above VGA resolution to
170 .Bl -tag -width /boot/defaults/loader.conf -compact
171 .It Pa /boot/defaults/loader.conf
172 default settings -- do not change this file.
173 .It Pa /boot/loader.4th
174 defines the commands used by loader to read and process
176 .It Pa /boot/loader.conf
177 user defined settings.
178 .It Pa /boot/loader.conf.local
179 machine-specific settings for sites with a common loader.conf.
180 .It Pa /boot/loader.rc
181 contains the instructions to automatically process
194 This manual page was written by
195 .An Daniel C. Sobral Aq dcs@FreeBSD.org .