Efi shell tips and tricks

EFI shell commands

Type	Command	Description	Notes
Boot Commands — EFI Shell. Commands related to nPartition booting	autoboot	Set/view autoboot timeout variable
	bcfg	Display/modify the driver/boot configuration
	boottest	Set/view BootTest bits
	dbprofile	Display/modify direct boot profiles for use by lanboot
	lanboot	Boot over the LAN
	reconfigreset	Reset the system (nPartition) for reconfiguration, the nPartition remains inactive, in the shutdown for reconfig state
	reset	Reset the system (nPartition)
	search	Connect drivers for bootables devices
Configuration Commands — EFI Shell. Commands for changing and retrieving system (nPartition) information	acpiconfig	Set/view ACPI configuration mode
	cellconfig	Deconfigure/reconfigure cells. (Set cell use-on-next-boot values.)
	cpuconfig	Deconfigure/reconfigure processors and processor cores
	date	Display the current date or set the date of the system (nPartition).
	dimmconfig	Deconfigure/reconfigure memory (DIMMs).
	err	Display/change the error level
	errdump	View/clear logs
	fru	View FRU data
	info	Display hardware information
	monarch	Set/view a monarch processor
	palproc	Make a PAL call
	romdrivers	Enable/disable PCI expansion ROM drivers
	rootcell	Set/view preferred root cells (Set nPartition core cell choices.)
	salproc	Make a SAL call
	tftp	Performs TFTP operation to a bootp/DHCP enabled Unix boot server
	time	Display the current time or set the time of the system (nPartition). EFI time is set and presented in GMT (Greenwich mean time).
	variable	Save/restore specific EFI variables
	ver	Display the version information
Device, Driver, and Handle Commands — EFI Shell. Commands for managing devices, drivers, and handles		baud View serial port com settings
		connect Bind a driver to a device
		dblk Hex dump of BlkIo devices
		devices Display devices managed by EFI drivers
		devtree Display tree of devices
		dh Dump handle info
		disconnect Disconnect driver(s) from device(s).
		drivers Display list of drivers
		drvcfg Invoke the Driver Config Protocol
		drvdiag Invoke the Driver Diagnostics Protocol
		guid Dump known GUID IDs
		lanaddress Display MAC address
		load Load EFI drivers
		map Map shortname to device path
		openinfo Display the open protocols for given handle
		pci Display PCI devices or PCI function configuration space
		reconnect Reconnect driver(s) from a device
		unload Unload a protocol image
Filesystem Commands — EFI Shell. Commands for managing files, directories, and attributes		attrib Display/change the attributes of files/directories
		cd Update/view the current directory
		comp Compare the contents of two files
		cp Copy one or more files/directories to another location
		edit Edit an ASCII or UNICODE file in full screen
		eficompress Compress infile and write to outfile
		efidecompress Decompress infile and write to outfile