1 # This is loader.conf - a file full of useful variables that you can
2 # set to change the default load behavior of your system. You should
3 # not edit this file! Put any overrides into one of the
4 # loader_conf_files instead and you will be able to update these
5 # defaults later without spamming your local configuration information.
7 # All arguments must be in double quotes.
11 ### Basic configuration options ############################
12 exec="echo Loading /boot/defaults/loader.conf"
14 kernel="kernel" # /boot sub-directory containing kernel and modules
15 bootfile="kernel" # Kernel name (possibly absolute path)
16 kernel_options="" # Flags to be passed to the kernel
17 loader_conf_files="/boot/device.hints /boot/loader.conf /boot/loader.conf.local"
18 nextboot_conf="/boot/nextboot.conf"
20 verbose_loading="NO" # Set to YES for verbose loader output
22 ### Splash screen configuration ############################
23 splash_bmp_load="NO" # Set this to YES for bmp splash screen!
24 splash_pcx_load="NO" # Set this to YES for pcx splash screen!
25 splash_txt_load="NO" # Set this to YES for TheDraw splash screen!
26 vesa_load="NO" # Set this to YES to load the vesa module
27 bitmap_load="NO" # Set this to YES if you want splash screen!
28 bitmap_name="splash.bmp" # Set this to the name of the file
29 bitmap_type="splash_image_data" # and place it on the module_path
31 ### Screen saver modules ###################################
32 # This is best done in rc.conf
33 screensave_load="NO" # Set to YES to load a screensaver module
34 screensave_name="green_saver" # Set to the name of the screensaver module
36 ### Random number generator configuration ##################
37 # See rc.conf(5). The entropy_boot_file config variable must agree with the
39 entropy_cache_load="YES" # Set this to NO to disable loading
40 # entropy at boot time
41 entropy_cache_name="/boot/entropy" # Set this to the name of the file
42 entropy_cache_type="boot_entropy_cache" # Required for the kernel to find
43 # the boot-time entropy cache. This
44 # must not change value even if the
45 # _name above does change!
47 ### RAM Blacklist configuration ############################
48 ram_blacklist_load="NO" # Set this to YES to load a file
49 # containing a list of addresses to
50 # exclude from the running system.
51 ram_blacklist_name="/boot/blacklist.txt" # Set this to the name of the file
52 ram_blacklist_type="ram_blacklist" # Required for the kernel to find
53 # the blacklist module
55 ### Microcode loading configuration ########################
56 cpu_microcode_load="NO" # Set this to YES to load and apply a
57 # microcode update file during boot.
58 cpu_microcode_name="/boot/firmware/ucode.bin" # Set this to the microcode
60 cpu_microcode_type="cpu_microcode" # Required for the kernel to find
61 # the microcode update file.
63 ### ACPI settings ##########################################
64 acpi_dsdt_load="NO" # DSDT Overriding
65 acpi_dsdt_type="acpi_dsdt" # Don't change this
66 acpi_dsdt_name="/boot/acpi_dsdt.aml"
67 # Override DSDT in BIOS by this file
68 acpi_video_load="NO" # Load the ACPI video extension driver
70 ### Initial memory disk settings ###########################
71 #mdroot_load="YES" # The "mdroot" prefix is arbitrary.
72 #mdroot_type="md_image" # Create md(4) disk at boot.
73 #mdroot_name="/boot/root.img" # Path to a file containing the image.
74 #rootdev="ufs:/dev/md0" # Set the root filesystem to md(4) device.
76 ### Loader settings ########################################
77 #loader_delay="3" # Delay in seconds before loading anything.
78 # Default is unset and disabled (no delay).
79 #autoboot_delay="10" # Delay in seconds before autobooting,
80 # -1 for no user interrupts, NO to disable
81 #password="" # Prevent changes to boot options
82 #bootlock_password="" # Prevent booting (see check-password.4th(8))
83 #geom_eli_passphrase_prompt="NO" # Prompt for geli(8) passphrase to mount root
84 bootenv_autolist="YES" # Auto populate the list of ZFS Boot Environments
85 #beastie_disable="NO" # Turn the beastie boot menu on and off
86 #kernels="kernel kernel.old" # Kernels to display in the boot menu
87 #loader_logo="orbbw" # Desired logo: orbbw, orb, fbsdbw, beastiebw, beastie, none
88 #comconsole_speed="9600" # Set the current serial console speed
89 #console="vidconsole" # A comma separated list of console(s)
90 #currdev="disk1s1a" # Set the current device
91 module_path="/boot/modules;/boot/dtb;/boot/dtb/overlays" # Set the module search path
92 module_blacklist="drm drm2 radeonkms i915kms amdgpu" # Loader module blacklist
93 #prompt="\\${interpret}" # Set the command prompt
94 #root_disk_unit="0" # Force the root disk unit number
95 #rootdev="disk1s1a" # Set the root filesystem
96 #dumpdev="disk1s1b" # Set a dump device early in the boot process
97 #tftp.blksize="1428" # Set the RFC 2348 TFTP block size.
98 # If the TFTP server does not support RFC 2348,
99 # the block size is set to 512. Valid: (8,9007)
100 #twiddle_divisor="1" # >1 means slow down the progress indicator.
102 ### Kernel settings ########################################
103 # The following boot_ variables are enabled by setting them to any value.
104 # Their presence in the kernel environment (see kenv(1)) has the same
105 # effect as setting the given boot flag (see boot(8)).
106 #boot_askname="" # -a: Prompt the user for the name of the root device
107 #boot_cdrom="" # -C: Attempt to mount root file system from CD-ROM
108 #boot_ddb="" # -d: Instructs the kernel to start in the DDB debugger
109 #boot_dfltroot="" # -r: Use the statically configured root file system
110 #boot_gdb="" # -g: Selects gdb-remote mode for the kernel debugger
111 #boot_multicons="" # -D: Use multiple consoles
112 #boot_mute="" # -m: Mute the console
113 #boot_pause="" # -p: Pause after each line during device probing
114 #boot_serial="" # -h: Use serial console
115 #boot_single="" # -s: Start system in single-user mode
116 #boot_verbose="" # -v: Causes extra debugging information to be printed
117 #init_path="/sbin/init:/sbin/oinit:/sbin/init.bak:/rescue/init"
118 # Sets the list of init candidates
119 #init_shell="/bin/sh" # The shell binary used by init(8).
120 #init_script="" # Initial script to run by init(8) before chrooting.
121 #init_chroot="" # Directory for init(8) to chroot into.
123 ### Kernel tunables ########################################
124 #hw.physmem="1G" # Limit physical memory. See loader(8)
125 #kern.dfldsiz="" # Set the initial data size limit
126 #kern.dflssiz="" # Set the initial stack size limit
127 #kern.hz="100" # Set the kernel interval timer rate
128 #kern.maxbcache="" # Set the max buffer cache KVA storage
129 #kern.maxdsiz="" # Set the max data size
130 #kern.maxfiles="" # Set the sys. wide open files limit
131 #kern.maxproc="" # Set the maximum # of processes
132 #kern.maxssiz="" # Set the max stack size
133 #kern.maxswzone="" # Set the max swmeta KVA storage
134 #kern.maxtsiz="" # Set the max text size
135 #kern.maxusers="32" # Set size of various static tables
136 #kern.msgbufsize="65536" # Set size of kernel message buffer
137 #kern.nbuf="" # Set the number of buffer headers
138 #kern.ncallout="" # Set the maximum # of timer events
139 #kern.ngroups="1023" # Set the maximum # of supplemental groups
140 #kern.sgrowsiz="" # Set the amount to grow stack
141 #kern.cam.boot_delay="10000" # Delay (in ms) of root mount for CAM bus
142 # registration, useful for USB sticks as root
143 #kern.cam.scsi_delay="2000" # Delay (in ms) before probing SCSI
144 #kern.ipc.maxsockets="" # Set the maximum number of sockets available
145 #kern.ipc.nmbclusters="" # Set the number of mbuf clusters
146 #kern.ipc.nsfbufs="" # Set the number of sendfile(2) bufs
147 #net.inet.tcp.tcbhashsize="" # Set the value of TCBHASHSIZE
148 #vfs.root.mountfrom="" # Specify root partition
149 #vm.kmem_size="" # Sets the size of kernel memory (bytes)
150 #debug.kdb.break_to_debugger="0" # Allow console to break into debugger.
151 #debug.ktr.cpumask="0xf" # Bitmask of CPUs to enable KTR on
152 #debug.ktr.mask="0x1200" # Bitmask of KTR events to enable
153 #debug.ktr.verbose="1" # Enable console dump of KTR events
155 ### Module loading syntax example ##########################
156 #module_load="YES" # loads module "module"
157 #module_name="realname" # uses "realname" instead of "module"
158 #module_type="type" # passes "-t type" to load
159 #module_flags="flags" # passes "flags" to the module
160 #module_before="cmd" # executes "cmd" before loading the module
161 #module_after="cmd" # executes "cmd" after loading the module
162 #module_error="cmd" # executes "cmd" if load fails