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. 6# 7# All arguments must be in double quotes. 8# 9# $FreeBSD$ 10 11### Basic configuration options ############################ 12exec="echo Loading /boot/defaults/loader.conf" 13 14kernel="kernel" # /boot sub-directory containing kernel and modules 15bootfile="kernel" # Kernel name (possibly absolute path) 16kernel_options="" # Flags to be passed to the kernel 17loader_conf_files="/boot/device.hints /boot/loader.conf /boot/loader.conf.local" 18loader_conf_dirs="/boot/loader.conf.d" 19nextboot_conf="/boot/nextboot.conf" 20verbose_loading="NO" # Set to YES for verbose loader output 21 22### Splash screen configuration ############################ 23splash_bmp_load="NO" # Set this to YES for bmp splash screen! 24splash_pcx_load="NO" # Set this to YES for pcx splash screen! 25splash_txt_load="NO" # Set this to YES for TheDraw splash screen! 26vesa_load="NO" # Set this to YES to load the vesa module 27bitmap_load="NO" # Set this to YES if you want splash screen! 28bitmap_name="splash.bmp" # Set this to the name of the file 29bitmap_type="splash_image_data" # and place it on the module_path 30 31### Screen saver modules ################################### 32# This is best done in rc.conf 33screensave_load="NO" # Set to YES to load a screensaver module 34screensave_name="green_saver" # Set to the name of the screensaver module 35 36### Early hostid configuration ############################ 37hostuuid_load="YES" 38hostuuid_name="/etc/hostid" 39hostuuid_type="hostuuid" 40 41### Random number generator configuration ################## 42# See rc.conf(5). The entropy_boot_file config variable must agree with the 43# settings below. 44entropy_cache_load="YES" # Set this to NO to disable loading 45 # entropy at boot time 46entropy_cache_name="/boot/entropy" # Set this to the name of the file 47entropy_cache_type="boot_entropy_cache" # Required for the kernel to find 48 # the boot-time entropy cache. This 49 # must not change value even if the 50 # _name above does change! 51 52### RAM Blacklist configuration ############################ 53ram_blacklist_load="NO" # Set this to YES to load a file 54 # containing a list of addresses to 55 # exclude from the running system. 56ram_blacklist_name="/boot/blacklist.txt" # Set this to the name of the file 57ram_blacklist_type="ram_blacklist" # Required for the kernel to find 58 # the blacklist module 59 60### Microcode loading configuration ######################## 61cpu_microcode_load="NO" # Set this to YES to load and apply a 62 # microcode update file during boot. 63cpu_microcode_name="/boot/firmware/ucode.bin" # Set this to the microcode 64 # update file path. 65cpu_microcode_type="cpu_microcode" # Required for the kernel to find 66 # the microcode update file. 67 68### ACPI settings ########################################## 69acpi_dsdt_load="NO" # DSDT Overriding 70acpi_dsdt_type="acpi_dsdt" # Don't change this 71acpi_dsdt_name="/boot/acpi_dsdt.aml" 72 # Override DSDT in BIOS by this file 73acpi_video_load="NO" # Load the ACPI video extension driver 74 75### Audit settings ######################################### 76audit_event_load="NO" # Preload audit_event config 77audit_event_name="/etc/security/audit_event" 78audit_event_type="etc_security_audit_event" 79 80### Initial memory disk settings ########################### 81#mdroot_load="YES" # The "mdroot" prefix is arbitrary. 82#mdroot_type="md_image" # Create md(4) disk at boot. 83#mdroot_name="/boot/root.img" # Path to a file containing the image. 84#rootdev="ufs:/dev/md0" # Set the root filesystem to md(4) device. 85 86### Loader settings ######################################## 87#loader_delay="3" # Delay in seconds before loading anything. 88 # Default is unset and disabled (no delay). 89#autoboot_delay="10" # Delay in seconds before autobooting, 90 # -1 for no user interrupts, NO to disable 91#password="" # Prevent changes to boot options 92#bootlock_password="" # Prevent booting (see check-password.4th(8)) 93#geom_eli_passphrase_prompt="NO" # Prompt for geli(8) passphrase to mount root 94bootenv_autolist="YES" # Auto populate the list of ZFS Boot Environments 95#beastie_disable="NO" # Turn the beastie boot menu on and off 96efi_max_resolution="1x1" # Set the max resolution for EFI loader to use: 97 # 480p, 720p, 1080p, 2160p/4k, 5k, or specify 98 # WidthxHeight (e.g. 1920x1080) 99#kernels="kernel kernel.old" # Kernels to display in the boot menu 100kernels_autodetect="YES" # Auto-detect kernel directories in /boot 101#loader_logo="orbbw" # Desired logo: orbbw, orb, fbsdbw, beastiebw, beastie, none 102#comconsole_speed="9600" # Set the current serial console speed 103#console="vidconsole" # A comma separated list of console(s) 104#currdev="disk1s1a" # Set the current device 105module_path="/boot/modules;/boot/dtb;/boot/dtb/overlays" # Set the module search path 106module_blacklist="drm drm2 radeonkms i915kms amdgpu" # Loader module blacklist 107#prompt="\\${interpret}" # Set the command prompt 108#root_disk_unit="0" # Force the root disk unit number 109#rootdev="disk1s1a" # Set the root filesystem 110#dumpdev="disk1s1b" # Set a dump device early in the boot process 111#tftp.blksize="1428" # Set the RFC 2348 TFTP block size. 112 # If the TFTP server does not support RFC 2348, 113 # the block size is set to 512. Valid: (8,9007) 114#twiddle_divisor="16" # >16 slows down the progress indicator; 115 # <16 speeds up the progress indicator. 116 117### Kernel settings ######################################## 118# The following boot_ variables are enabled by setting them to any value. 119# Their presence in the kernel environment (see kenv(1)) has the same 120# effect as setting the given boot flag (see boot(8)). 121#boot_askname="" # -a: Prompt the user for the name of the root device 122#boot_cdrom="" # -C: Attempt to mount root file system from CD-ROM 123#boot_ddb="" # -d: Instructs the kernel to start in the DDB debugger 124#boot_dfltroot="" # -r: Use the statically configured root file system 125#boot_gdb="" # -g: Selects gdb-remote mode for the kernel debugger 126#boot_multicons="" # -D: Use multiple consoles 127#boot_mute="" # -m: Mute the console 128#boot_pause="" # -p: Pause after each line during device probing 129#boot_serial="" # -h: Use serial console 130#boot_single="" # -s: Start system in single-user mode 131#boot_verbose="" # -v: Causes extra debugging information to be printed 132#init_path="/sbin/init:/sbin/oinit:/sbin/init.bak:/rescue/init" 133 # Sets the list of init candidates 134#init_shell="/bin/sh" # The shell binary used by init(8). 135#init_script="" # Initial script to run by init(8) before chrooting. 136#init_chroot="" # Directory for init(8) to chroot into. 137 138### Kernel tunables ######################################## 139#hw.physmem="1G" # Limit physical memory. See loader(8) 140#kern.dfldsiz="" # Set the initial data size limit 141#kern.dflssiz="" # Set the initial stack size limit 142#kern.hz="100" # Set the kernel interval timer rate 143#kern.maxbcache="" # Set the max buffer cache KVA storage 144#kern.maxdsiz="" # Set the max data size 145#kern.maxfiles="" # Set the sys. wide open files limit 146#kern.maxproc="" # Set the maximum # of processes 147#kern.maxssiz="" # Set the max stack size 148#kern.maxswzone="" # Set the max swmeta KVA storage 149#kern.maxtsiz="" # Set the max text size 150#kern.maxusers="32" # Set size of various static tables 151#kern.msgbufsize="65536" # Set size of kernel message buffer 152#kern.nbuf="" # Set the number of buffer headers 153#kern.ncallout="" # Set the maximum # of timer events 154#kern.ngroups="1023" # Set the maximum # of supplemental groups 155#kern.sgrowsiz="" # Set the amount to grow stack 156#kern.cam.boot_delay="10000" # Delay (in ms) of root mount for CAM bus 157 # registration, useful for USB sticks as root 158#kern.cam.scsi_delay="2000" # Delay (in ms) before probing SCSI 159#kern.ipc.maxsockets="" # Set the maximum number of sockets available 160#kern.ipc.nmbclusters="" # Set the number of mbuf clusters 161#kern.ipc.nsfbufs="" # Set the number of sendfile(2) bufs 162#net.inet.tcp.tcbhashsize="" # Set the value of TCBHASHSIZE 163#vfs.root.mountfrom="" # Specify root partition 164#vm.kmem_size="" # Sets the size of kernel memory (bytes) 165#debug.kdb.break_to_debugger="0" # Allow console to break into debugger. 166#debug.ktr.cpumask="0xf" # Bitmask of CPUs to enable KTR on 167#debug.ktr.mask="0x1200" # Bitmask of KTR events to enable 168#debug.ktr.verbose="1" # Enable console dump of KTR events 169 170### Module loading syntax example ########################## 171#module_load="YES" # loads module "module" 172#module_name="realname" # uses "realname" instead of "module" 173#module_type="type" # passes "-t type" to load 174#module_flags="flags" # passes "flags" to the module 175#module_before="cmd" # executes "cmd" before loading the module 176#module_after="cmd" # executes "cmd" after loading the module 177#module_error="cmd" # executes "cmd" if load fails 178
