[U-Boot-Users] Updating u-boot environment
wd at denx.de
Tue Jan 25 21:58:18 CET 2005
In message <41F69395.3070003 at sun.com> you wrote:
> I need to write a program or shell script that can update u-boot
environment (e.g. MAC address).
> Any pointers in how this may be done ?
A program or shell script in U-Boot? No program needed, as the
"setenv" command is a builtin. Youc an put calls to the "setenv" or
"askenv" in a text file (= shell script), use the mkimage tool (-T
script) to make script image from it,. load it and run it using the
Under Linux, you can use the fw_setenv tool provided in tools/env/
Note that ithe MAC address is normally write protected, i. e. it
cannot be changed once set. This is *intentional*.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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