HP Unified Extensible Firmware Interface - Manual (Page 3)

Contents
1 Introduction...............................................................................................5
Commands and capabilities.......................................................................................................5
Accessing the UEFI Shell............................................................................................................5
Accessing the HP UEFI System Utilities....................................................................................5
Before booting to the UEFI Shell.............................................................................................7
Selecting the UEFI Mode..................................................................................................7
Enabling the Embedded UEFI Shell....................................................................................8
Configuring the UEFI Shell....................................................................................................8
Adding Embedded UEFI Shell to the boot order list..............................................................8
Changing the UEFI boot order..........................................................................................9
Booting to the UEFI Shell.....................................................................................................10
Accessing the UEFI Shell from a serial console connection.......................................................11
2 UEFI Shell command reference...................................................................13
Command line syntax..............................................................................................................13
Command line completion..................................................................................................13
Getting started ......................................................................................................................13
Controlling command output...............................................................................................14
Limiting output to one screen at a time.............................................................................14
Displaying detailed output..............................................................................................15
Displaying summary output.............................................................................................16
Suppressing the confirmation prompt...............................................................................16
Displaying command help...................................................................................................17
Displaying all command help.........................................................................................17
Displaying help for a specific command...........................................................................17
Displaying all help for commands beginning with a specific character.................................18
Accessing a file system from the Shell...................................................................................20
UEFI Shell commands..............................................................................................................20
alias................................................................................................................................20
attrib................................................................................................................................21
cd....................................................................................................................................22
cls....................................................................................................................................23
comp...............................................................................................................................24
cp....................................................................................................................................25
date.................................................................................................................................26
dblk.................................................................................................................................27
devices.............................................................................................................................28
devtree.............................................................................................................................29
dh...................................................................................................................................30
dmem..............................................................................................................................31
drivers..............................................................................................................................32
echo................................................................................................................................33
edit..................................................................................................................................34
eficompress.......................................................................................................................34
efidecompress...................................................................................................................35
exit..................................................................................................................................35
fwupdate..........................................................................................................................35
getmtc..............................................................................................................................36
goto.................................................................................................................................36
help.................................................................................................................................36
ls/dir...............................................................................................................................37
map.................................................................................................................................40
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