The following section describes the most important commands available
in U-Boot. Please note that U-Boot is highly configurable, so not
all of these commands may be available in the configuration of
U-Boot installed on your hardware, or additional commands may exist.
You can use the
command to print a list of
all available commands for your configuration.
For most commands, you do not need to type in the full command name;
instead it is sufficient to type a few characters. For instance,
can be abbreviated as
The behaviour of some commands depends on the configuration of
U-Boot and on the definition of some variables in your U-Boot
Almost all U-Boot commands expect numbers to be entered in hexadecimal
(Exception: for historical reasons,
command takes its argument
in decimal input format.)
Be careful not to use edit keys besides 'Backspace', as hidden
characters in things like environment variables can be very
difficult to find.