07dd15c173
the interrupt which will be given to the PCIC. If the value supplied is illegal or not available, interrupts will be turned off and polled mode used instead.
291 lines
9.2 KiB
Plaintext
291 lines
9.2 KiB
Plaintext
################################################################################
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# Thelp DDisplay command help
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help [topic [subtopic]]
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?
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The help command displays help on commands and their usage.
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In command help, a term enclosed with <...> indicates a value as
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described by the term. A term enclosed with [...] is optional,
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and may not be required by all forms of the command.
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Some commands may not be availalble. Use the '?' command to list
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most available commands.
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################################################################################
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# Tautoboot DBoot after a delay
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autoboot [<delay> [<prompt>]]
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Displays <prompt> or a default prompt, and counts down <delay> seconds
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before attempting to boot. If <delay> is not specified, the default
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value is 10.
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################################################################################
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# Tboot DBoot immediately
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boot [-<arg> ...] [<kernelname>]
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Boot the system. If arguments are specified, they are added to the
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arguments for the kernel. If <kernelname> is specified, and a kernel
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has not already been loaded, it will be booted instead of the default
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kernel.
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################################################################################
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# Techo DEcho arguments
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echo [-n] [<message>]
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Emits <message>, with no trailing newline if -n is specified. This is
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most useful in conjunction with scripts and the '@' line prefix.
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Variables are substituted by prefixing them with $, eg.
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echo Current device is $currdev
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will print the current device.
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################################################################################
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# Tload DLoad a kernel or module
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load [-t <type>] <filename>
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Loads the module contained in <filename> into memory. If no other
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modules are loaded, <filename> must be a kernel or the command will
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fail.
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If -t is specified, the module is loaded as raw data of <type>, for
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later use by the kernel or other modules. <type> may be any string.
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################################################################################
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# Tls DList files
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ls [-l] [<path>]
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Displays a listing of files in the directory <path>, or the root
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directory of the current device if <path> is not specified.
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The -l argument displays file sizes as well; the process of obtaining
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file sizes on some media may be very slow.
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################################################################################
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# Tlsdev DList devices
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lsdev [-v]
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List all of the devices from which it may be possible to load modules.
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If -v is specified, print more details.
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################################################################################
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# Tlsmod DList modules
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lsmod [-v]
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List loaded modules. If [-v] is specified, print more details.
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################################################################################
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# Tpnpscan DScan for PnP devices
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pnpscan [-v]
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Scan for Plug-and-Play devices. This command is normally automatically
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run as part of the boot process, in order to dynamically load modules
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required for system operation.
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If the -v argument is specified, details on the devices found will
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be printed.
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################################################################################
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# Tset DSet a variable
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set <variable name>
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set <variable name>=<value>
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The set command is used to set variables.
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################################################################################
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# Tset Sautoboot_delay DSet the default autoboot delay
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set autoboot_delay=<value>
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Sets the default delay for the autoboot command to <value> seconds.
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################################################################################
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# Tset Sbootfile DSet the default boot file set
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set bootfile=<filename>[,<filename>...]
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The default search path for bootable kernels is /kernel,/kernel.old.
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It may be overridden by setting the bootfile variable to a
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semicolon-separated list of paths, which will be searched for in turn.
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################################################################################
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# Tset Sboot_askname DPrompt for root device
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set boot_askname
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Instructs the kernel to prompt the user for the name of the root device
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when the kernel is booted.
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################################################################################
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# Tset Sboot_ddb DDrop to the kernel debugger (DDB)
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set boot_ddb
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Instructs the kernel to start in the DDB debugger, rather than
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proceeding to initialise when booted.
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################################################################################
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# Tset Sboot_gdb DSelect gdb-remote mode
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set boot_gdb
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Selects gdb-remote mode for the kernel debugger by default.
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################################################################################
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# Tset Sboot_single DStart system in single-user mode
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set boot_single
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Prevents the kernel from initiating a multi-user startup, single-user
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mode will be entered when the kernel has finished device probes.
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################################################################################
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# Tset Sboot_verbose DVerbose boot messages
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set boot_verbose
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Setting this variable causes extra debugging information to be printed
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by the kernel during the boot phase.
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################################################################################
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# Tset Sconsole DSet the current console
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set console[=<value>]
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Sets the current console. If <value> is omitted, a list of valid
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consoles will be displayed.
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################################################################################
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# Tset Scurrdev DSet the current device
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set currdev=<device>
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Selects the default device. Syntax for devices is odd.
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################################################################################
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# Tset Smodule_path DSet the module search path
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set module_path=<path>[,<path>...]
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Sets the list of directories which will be searched in for modules
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named in a load command or implicitly required by a dependancy.
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################################################################################
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# Tset Sprompt DSet the command prompt
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set prompt=<value>
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The command prompt is displayed when the loader is waiting for input.
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Variable substitution is performed on the prompt. The default
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prompt can be set with:
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set prompt=\$currdev>
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################################################################################
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# Tset Srootdev DSet the root filesystem
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set rootdev=<path>
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By default the value of $currdev is used to set the root filesystem
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when the kernel is booted. This can be overridden by setting
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$rootdev explicitly.
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################################################################################
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# Tset Stunables DSet kernel tunable values
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Various kernel tunable parameters can be overriden by specifying new
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values in the environment.
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set kern.ipc.nmbclusters=<value> NMBCLUSTERS
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Set the number of mbuf clusters to be allocated. The value
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cannot be set below the default determined when the kernel
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was compiled.
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set kern.vm.kmem.size=<value> VM_KMEM_SIZE
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Sets the size of kernel memory (bytes). This overrides
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completely the value determined when the kernel was
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compiled.
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set machdep.pccard.pcic_irq=<value>
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Overrides the IRQ normally assigned to a PCCARD controller.
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Typically the first available interrupt will be allocated,
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which may conflict with other hardware. If this value is
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set to 0, an interrupt will not be assigned and the
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controller will operate in polled mode only.
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################################################################################
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# Tshow DShow the values of variables
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show [<variable>]
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Displays the value of <variable>, or all variables if not specified.
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Multiple paths can be separated with a semicolon.
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See the set command for a list of some variables.
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################################################################################
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# Tinclude DRead commands from a script file
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include <filename>
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The entire contents of <filename> are read into memory before executing
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commands, so it is safe to source a file from removable media.
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A number of modifiers may be prefixed to commands within a script file
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to alter their behaviour:
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# Ignore the line (use for comments).
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@ Suppresses the printing of the command when executed.
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- Prevents the script from terminating if the command returns
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an error.
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################################################################################
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# Tread DRead input from the terminal
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read [-t <value>] [-p <prompt>] [<variable name>]
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The read command reads a line of input from the terminal. If the
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-t argument is specified, it will return nothing if no input has been
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received after <value> seconds. (Any keypress will cancel the
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timeout).
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If -p is specified, <prompt> is printed before reading input. No
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newline is emitted after the prompt.
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If a variable name is supplied, the variable is set to the value read,
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less any terminating newline.
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################################################################################
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# Tunload DRemove all modules from memory
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unload
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This command removes any kernel and all loaded modules from memory.
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################################################################################
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# Tunset DUnset a variable
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unset <variable name>
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If allowed, the named variable's value is discarded and the variable
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is removed.
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################################################################################
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