After installing uboot-tools on F38/RPi-4 fw_printenv and fw_setenv fails and are unusable, see below. Reproducible: Always Steps to Reproduce: 1.Install uboot-tools on RPi-4/F38 2.Run fw_printenv or fw_setenv Actual Results: Error message like "Cannot find file /etc/fw_env.config" Expected Results: Well... On my RPi-4, problem can be worked around by manually installing /etc/fw_env.config with contents like /boot/efi/uboot.env 0x000 0x4000 More context: https://groups.google.com/a/lists.mender.io/g/mender/c/_i2-SQ_IDdk/m/DS3T5UjvBAAJ
I bit sketchy, that was. Here is an example session after moving /etc/fw_env.config -> fw_env.config.bak $ sudo fw_printenv bootdelay Cannot parse config file '/etc/fw_env.config': No such file or directory Failed to find NVMEM device $ sudo mv /etc/fw_env.config.bak /etc/fw_env.config $ sudo fw_printenv bootdelay bootdelay=-2 $