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How to replace u-boot environment in linux

Question asked by Bernie Chen on Apr 26, 2016
Latest reply on Apr 26, 2016 by Bernie Chen

Dear all


I using kernel 3.0.35, ubuntu 11.10 , and we using sd card boot, below are my arguments in u-boot


setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/mmcblk1p1 rootwait rw video=mxcfb1:dev=ldb,LDB-XGA,if=RGB666 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB2


setenv bootcmd_mmc 'run bootargs_base bootargs_mmc;mmc dev 2;mmc read ${loadaddr} 0x800 0x2000;bootm'


setenv bootcmd 'run bootcmd_mmc'



run bootcmd


then we can into ubuntu. Please can someone kindly indicate how to replace uboot environment from linux. What tools that I should to use?


For example, I'd like replace LDB-XGA by LDB-WGA.


Thank you..