but, i solved my problem myself. u-boot printenv & linux fw_printenv default value is different. - Linux fw_printenv(ex. bootdelay=2) is downloaded binary for ...
INCA-IP # help printenv printenv - print values of all environment ... The printenv command prints one, several or all variables of the U-Boot environment.
31.08.2012 · U-boot environment variables in linux navigation search U-Boot makes use of environment variables which can be read and set from the U-Boot command line with printenv and setenv. It can be helpful to read and set these variables from Linux as well. The U-Boot distribution has sources for these commands, named fw_printenv and fw_setenv . Contents
30.09.2014 · The fw_printenv and fw_setenv commands can be used to read and set U-Boot environment variables from Linux. This guide uses the RidgeRun SDK to enable these commands in your target board and configure the /etc/fw_env.config file accordingly. Contents 1 Setup 1.1 Building the U-Boot env tools 1.2 Preparing the fw_env.config file
U-Boot makes use of environment variables which can be read and set from the U-Boot command line with printenv and setenv. It can be helpful to read and set these variables from Linux as well, for ex. to remote control some U-Boot processes like software updates.
Login · printenv <var> - print the value of the variable var. Without arguments, prints all environment variables: · setenv <var> <val> - set the variable var to ...
The printenv command prints one, several or all variables of the U-Boot environment. When argumens are given, these are interpreted as the names of environment variables which will be printed with their values: INCA-IP # printenv ipaddr hostname netmask ipaddr=192.168.3.65 hostname=inca netmask=255.255.255.0 INCA-IP #