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• printenv <var> - print the value of the variable <var>. Without arguments, prints all environment variables:

  Code Block
  STM32H7-SOM U-Boot> printenv addclk=setenv bootargs ${bootargs} clk_ignore_unused addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}: ${netmask}:${hostname}:eth0:off altbootcmd=run reliable_altboot baudrate=115200 boot1_valid=1 boot2_active=0 ... upgrade_available=0 Environment size: 3961/16379 bytes STM32H7-SOM U-Boot>

• setenv <var> <val> - set the variable <var> to the value <val>:

  Code Block
  STM32H7-SOM U-Boot> setenv image my.rootfs.uImage STM32H7-SOM U-Boot>

• saveenv - save the up-to-date U-Boot environment, possibly updated using setenv commands, into the QSPI Flash. Running saveenv makes sure that any updates you have made to the U-Boot environment are persistent across power cycles and resets.

  Code Block
  STM32H7-SOM U-Boot> saveenv Saving Environment to UBI... ubi0: detaching mtd2 ... Writing to UBI... done OK STM32H7-SOM U-Boot>