Emerson ATCA-S201 manual Boot environment variables, Uboot= run flashboot

	RTM-ATCA-SXXX Overview
U-boot command syntax	description
	and lost if the system is re-booted.
ping <IP address>	Sends an icmp echo address to the designated IP address
	(entered in dotted decimal format)
reset	Perform soft reset of the ATCA cpu, forcing a system
	reboot.
run <variable_name>	Run a sequence of commands defined in the
	environment <variable_name>, for example:
	uboot=> run flashboot
version	Displays the version and build date of the U-boot image
	running on ATCA blade.

3.6.3U-boot environment variables

Administrators may display the full list of environment variables using the printenv command. U-boot includes the following environment variables with pre-assigned factory default settings.

	Table 9 U-boot environment variables shown with printenv
Variable name	Default value	Description
bootcmd	run flashboot	This variable defines a command string that is
		automatically executed when the initial bootdelay
		countdown is not interrupted.
flashboot		A sequence of commands, set at manufacturing time.
		If in the U-boot console, use run flashboot to boot the
		ATCA using the images contained in flash. This command
		sequence is executed automatically by bootcmd in a
		normal power-up.
ramboot		A sequence of commands, set at manufacturing time.
		If in the U-boot console, use run ramboot to boot the
		ATCA from the serverip node.
nfsboot		A series of startup commands, set at manufacturing time.
		RESERVED for future use.
bootdelay	5	U-boot will wait this number of seconds before it executes
		the bootcmd variable. After reset, a countdown message
		is printed to the serial console. Pressing any key will
		interrupt normal boot and display the U-boot console
		prompt.
		Value 0 =boot without delay.
		Value -1 = disable autoboot, always enter U-boot console
baudrate	115200	RS232 Serial port baud rate, default=115200 (decimal)
		(Max: 115200)
loads_echo	1	If set to 1, all characters received during a serial download
		(using the loads command) are echoed to the serial
		console.
rootpath	/nfsroot	RESERVED for future use.
hostname		Not used

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