Hp Unified Extensible Firmware Interface Manual do Utilizador descarregar pdf (Página 36)

Description

This command updates the system BIOS firmware. Optionally, specify an NVRAM reset, a reboot

after the flash, or both. If no options are specified, none are assumed.

Example

To update the system BIOS, reset NVRAM to its default configuration, and execute a reboot:

Shell> fwupdate YourFlashImage.BIN -r

getmtc

Gets the MTC from BootServices and displays it.

Syntax

getmtc

This command displays the current monotonic counter value. The lower 32 bits increment every

time this command is executed. Every time the system is reset, the upper 32 bits is incremented

and the lower 32 bits is reset to 0.

goto

Goes to a label in a script.

Syntax

goto label

help

Displays the list of commands that are built into the UEFI Shell.

Syntax

help [ cmd | pattern | special ] [-usage] [-v] [-section sectionname] [-b]

Options

cmd Specifies the command for which to display help.

pattern Specifies the pattern to use for displaying command help.

special Displays a list of the special characters used in the shell command

line.

-usage Displays usage information for the command. This results in the

same display as specifying –section:NAME and

–section:SYNOPSIS .

-v Displays verbose information.

-section sectionname Displays the specified section of the help information.

-b Displays the help output one screen at a time.

Description

This command displays information about one or more shell commands.

If no other options are specified, each command is displayed along with a brief description of its

function. If–v is specified, then all help information for the specified commands appears. If

–section is specified, only the help section specified appears (see below). If –usage is specified,

then the command, a brief description and the usage appears.

The help text is gathered from UCS-2 text files found in the directory where the shell or shell

command executable is located. The files have the name command-name.man where

36 UEFI Shell command reference

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Hp Unified Extensible Firmware Interface Manual do Utilizador Página 36