Editing /boot/defaults/loader.conf

{{welcome}}

==Introduction==

This is the content <code>/boot/defaults/loader.conf</code> of GhostBSD 20.01. with a wiki formatting.

==Content==

This is '''loader.conf''' - a file full of useful variables that you can
set to change the default load behavior of your system. '''You should
not edit this file!'''<br/>
Put any overrides into one of the '''loader_conf_files''' instead and you will be able to update these defaults later without spamming your local configuration information.

''All arguments must be in double quotes.''

'''$FreeBSD$'''

=== Basic configuration options  ===

<code>exec="echo Loading /boot/defaults/loader.conf</code>

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|kernel="kernel"		
|/boot sub-directory containing kernel and modules
|-
|bootfile="kernel"	
|Kernel name (possibly absolute path)
|-
|kernel_options=""	
|Flags to be passed to the kernel
|-
|loader_conf_files="/boot/device.hints /boot/loader.conf /boot/loader.conf.local"
|
|-
|nextboot_conf="/boot/nextboot.conf"
|
|-
|nextboot_enable="NO"
|
|-
|verbose_loading="NO"		
|Set to YES for verbose loader output
|}

===  Splash screen configuration  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|splash_bmp_load="NO"		
|Set this to YES for bmp splash screen!
|-
|splash_pcx_load="NO"		
|Set this to YES for pcx splash screen!
|-
|splash_txt_load="NO"		
|Set this to YES for TheDraw splash screen!
|-
|vesa_load="NO"			
|Set this to YES to load the vesa module
|-
|bitmap_load="NO"		
|Set this to YES if you want splash screen!
|-
|bitmap_name="splash.bmp"	
|Set this to the name of the file
|-
|bitmap_type="splash_image_data" 
|and place it on the module_path
|}

===  Screen saver modules  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
!colspan="2"| This is best done in rc.conf
|-
|screensave_load="NO"		
|Set to YES to load a screensaver module
|-
|screensave_name="green_saver"	
|Set to the name of the screensaver module
|}

===  Random number generator configuration  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
!colspan="2"|See rc.conf(5). The entropy_boot_file config variable must agree with the settings below.
|-
|entropy_cache_load="YES"		
|Set this to NO to disable loading entropy at boot time
|-
|entropy_cache_name="/boot/entropy"	
|Set this to the name of the file
|-
|entropy_cache_type="boot_entropy_cache"	
|Required for the kernel to find the boot-time entropy cache. This must not change value even if the _name above does change!
|}

===  RAM Blacklist configuration  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|ram_blacklist_load="NO"			
|Set this to YES to load a file containing a list of addresses to exclude from the running system.
|-
|ram_blacklist_name="/boot/blacklist.txt" 
|Set this to the name of the file
|-
|ram_blacklist_type="ram_blacklist"	
|Required for the kernel to find the blacklist module
|}

===  Microcode loading configuration  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|cpu_microcode_load="NO"			
|Set this to YES to load and apply a microcode update file during boot.
|-
|cpu_microcode_name="/boot/firmware/ucode.bin" 
|Set this to the microcode update file path.
|-
|cpu_microcode_type="cpu_microcode"	
|Required for the kernel to find the microcode update file.
|}

===  ACPI settings  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|acpi_dsdt_load="NO"		
|DSDT Overriding
|-
|acpi_dsdt_type="acpi_dsdt"	
|Don't change this
|-
|acpi_dsdt_name="/boot/acpi_dsdt.aml"
|Override DSDT in BIOS by this file
|-
|acpi_video_load="NO"		
|Load the ACPI video extension driver
|}

===  Audit settings  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|audit_event_load="NO"		
|Preload audit_event config
|-
|audit_event_name="/etc/security/audit_event"
|
|-
|audit_event_type="etc_security_audit_event"
|
|}

===  Initial memory disk settings  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|#mdroot_load="YES"		
|The "mdroot" prefix is arbitrary.
|-
|#mdroot_type="md_image"		
|Create [https://www.unix.com/man-page/freebsd/3/md4/ md(4)] disk at boot.
|-
|#mdroot_name="/boot/root.img"	
|Path to a file containing the image.
|-
|#rootdev="ufs:/dev/md0"		
|Set the root filesystem to [https://www.unix.com/man-page/freebsd/3/md4/ md(4)] device.
|}

===  Loader settings  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|#loader_delay="3"		
|Delay in seconds before loading anything. Default is unset and disabled (no delay).
|-
|#autoboot_delay="10"		
|Delay in seconds before autobooting, -1 for no user interrupts, NO to disable
|-
|#password=""			
|Prevent changes to boot options
|-
|#bootlock_password=""		
|Prevent booting (see [https://www.freebsd.org/cgi/man.cgi?query=check-password.4th&apropos=0&sektion=0&manpath=FreeBSD+9-current&arch=default&format=html check-password.4th(8)])
|-
|#geom_eli_passphrase_prompt="NO" 
|Prompt for [https://www.freebsd.org/cgi/man.cgi?query=geli&apropos=0&sektion=0&manpath=FreeBSD+12.1-RELEASE+and+Ports&arch=default&format=html geli(8)] passphrase to mount root
|-
|bootenv_autolist="YES"		
|Auto populate the list of ZFS Boot Environments
|-
|#beastie_disable="NO"		
|Turn the beastie boot menu on and off
|-
|efi_max_resolution="1x1"	
|Set the max resolution for EFI loader to use:
* 480p, 720p, 1080p, 2160p/4k, 5k, or specify
* WidthxHeight (e.g. 1920x1080)
|-
|#kernels="kernel kernel.old"	
|Kernels to display in the boot menu
|-
|kernels_autodetect="YES"	
|Auto-detect kernel directories in /boot
|-
|#loader_logo="orbbw"		
|Desired logo: orbbw, orb, fbsdbw, beastiebw, beastie, none
|-
|#comconsole_speed="9600"	
|Set the current serial console speed
|-
|#console="vidconsole"		
|A comma separated list of console(s)
|-
|#currdev="disk1s1a"		
|Set the current device
|-
|module_path="/boot/modules;/boot/dtb;/boot/dtb/overlays"	
|Set the module search path
|-
|module_blacklist="drm drm2 radeonkms i915kms amdgpu"	
|Loader module blacklist
|-
|#prompt="\\${interpret}"	
|Set the command prompt
|-
|#root_disk_unit="0"		
|Force the root disk unit number
|-
|#rootdev="disk1s1a"		
|Set the root filesystem
|-
|#dumpdev="disk1s1b"		
|Set a dump device early in the boot process
|-
|#tftp.blksize="1428"		
|Set the RFC 2348 TFTP block size. If the TFTP server does not support RFC 2348, the block size is set to 512. Valid: (8,9007)
|-
|#twiddle_divisor="1"		
| >1 means slow down the progress indicator.

|}

===  Kernel settings  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
!colspan="2"|The following boot_ variables are enabled by setting them to any value. Their presence in the kernel environment (see kenv(1)) has the same effect as setting the given boot flag (see boot(8)).
|-
|#boot_askname=""	
| -a: Prompt the user for the name of the root device
|-
|#boot_cdrom=""		
| -C: Attempt to mount root file system from CD-ROM
|-
|#boot_ddb=""		
| -d: Instructs the kernel to start in the DDB debugger
|-
|#boot_dfltroot=""	
| -r: Use the statically configured root file system
|-
|#boot_gdb=""		
| -g: Selects gdb-remote mode for the kernel debugger
|-
|#boot_multicons=""	
| -D: Use multiple consoles
|-
|#boot_mute=""		
| -m: Mute the console
|-
|#boot_pause=""		
| -p: Pause after each line during device probing
|-
|#boot_serial=""		
| -h: Use serial console
|-
|#boot_single=""		
| -s: Start system in single-user mode
|-
|#boot_verbose=""	
| -v: Causes extra debugging information to be printed
|-
|#init_path="/sbin/init:/sbin/oinit:/sbin/init.bak:/rescue/init"
|Sets the list of init candidates
|-
|#init_shell="/bin/sh"	
|The shell binary used by [https://www.freebsd.org/cgi/man.cgi?query=init&apropos=0&sektion=0&manpath=FreeBSD+12.1-RELEASE+and+Ports&arch=default&format=html init(8)].
|-
|#init_script=""		
|Initial script to run by [https://www.freebsd.org/cgi/man.cgi?query=init&apropos=0&sektion=0&manpath=FreeBSD+12.1-RELEASE+and+Ports&arch=default&format=html init(8)] before chrooting.
|-
|#init_chroot=""		
|Directory for [https://www.freebsd.org/cgi/man.cgi?query=init&apropos=0&sektion=0&manpath=FreeBSD+12.1-RELEASE+and+Ports&arch=default&format=html init(8)] to chroot into.
|}

=== Kernel tunables  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|#hw.physmem="1G"		
|Limit physical memory. See [https://www.unix.com/man-page/freebsd/8/loader/ loader(8)]
|-
|#kern.dfldsiz=""		
|Set the initial data size limit
|-
|#kern.dflssiz=""		
|Set the initial stack size limit
|-
|#kern.hz="100"			
|Set the kernel interval timer rate
|-
|#kern.maxbcache=""		
|Set the max buffer cache KVA storage
|-
|#kern.maxdsiz=""		
|Set the max data size
|-
|#kern.maxfiles=""		
|Set the sys. wide open files limit
|-
|#kern.maxproc=""		
|Set the maximum of processes
|-
|#kern.maxssiz=""		
|Set the max stack size
|-
|#kern.maxswzone=""		
|Set the max swmeta KVA storage
|-
|#kern.maxtsiz=""		
|Set the max text size
|-
|#kern.maxusers="32"		
|Set size of various static tables
|-
|#kern.msgbufsize="65536"	
|Set size of kernel message buffer
|-
|#kern.nbuf=""			
|Set the number of buffer headers
|-
|#kern.ncallout=""		
|Set the maximum of timer events
|-
|#kern.ngroups="1023"		
|Set the maximum of supplemental groups
|-
|#kern.sgrowsiz=""		
|Set the amount to grow stack
|-
|#kern.cam.boot_delay="10000"	
|Delay (in ms) of root mount for CAM bus registration, useful for USB sticks as root
|-
|#kern.cam.scsi_delay="2000"	
|Delay (in ms) before probing SCSI
|-
|#kern.ipc.maxsockets=""		
|Set the maximum number of sockets available
|-
|#kern.ipc.nmbclusters=""	
|Set the number of mbuf clusters
|-
|#kern.ipc.nsfbufs=""		
|Set the number of [https://www.unix.com/man-page/freebsd/2/sendfile/ sendfile(2)] bufs
|-
|#net.inet.tcp.tcbhashsize=""	
|Set the value of TCBHASHSIZE
|-
|#vfs.root.mountfrom=""		
|Specify root partition
|-
|#vm.kmem_size=""		
|Sets the size of kernel memory (bytes)
|-
|#debug.kdb.break_to_debugger="0" 
|Allow console to break into debugger.
|-
|#debug.ktr.cpumask="0xf"	
|Bitmask of CPUs to enable KTR on
|-
|#debug.ktr.mask="0x1200"	
|Bitmask of KTR events to enable
|-
|#debug.ktr.verbose="1"		
|Enable console dump of KTR events
|}

=== Module loading syntax example  ===

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px" 
|-
! scope="col" style="width: 100px;"|'''Variable'''
! scope="col" style="width: 350px;"|'''Description'''
|-
|#module_load="YES"		
|loads module "module"
|-
|#module_name="realname"		
|uses "realname" instead of "module"
|-
|#module_type="type"		
|passes "-t type" to load
|-
|#module_flags="flags"		
|passes "flags" to the module
|-
|#module_before="cmd"		
|executes "cmd" before loading the module
|-
|#module_after="cmd"		
|executes "cmd" after loading the module
|-
|#module_error="cmd"		
|executes "cmd" if load fails
|}

==  GhostBSD defaults		    ==


''' Accept the wifi firmware license'''
 legal.intel_ipw.license_ack=1
 legal.intel_iwi.license_ack=1
 legal.realtek.license_ack=1

''' Show keystokes for passphrases'''
 kern.geom.eli.visible_passphrase=2

''' Skip the often slow memory tests in VMs'''
 hw.memtest.tests=0

''' don't waste time on probing USB at early boot'''
 hw.usb.no_boot_wait="1"

''' Load geom support'''
 crypto_load="YES"
 geom_eli_load="YES"

'''Enable hardware crypto'''
 aesni_load="YES"

''' Set ipfw to default accept'''
 net.inet.ip.fw.default_to_accept="1"

'''Set the brand/loader logo'''
 loader_brand="GhostBSD"
 loader_logo="none"
 loader_menu_title="Welcome to GhostBSD"

'''Speed up boot time'''
 autoboot_delay="02"

'''We use OpenRC instead of rc.d'''
 rc_system="openrc"

{|class="wikitable" style="width:96.5%;background:#FFFFFF; border:2px solid #008000;text-align:left;padding: 10px"
|-
!colspan="3"|'''Back to the''' [[image:Icon Disti GhostBSD.png|50px|link=Directory Structure]]'''Directory Structure to [[image:Icon Disti GhostBSD.png|50px|link=.conf Files]].conf Files or to [[image:Icon Disti GhostBSD.png|50px|link=/boot/]] /boot/'''
|}



[[Category:Booting]]