On Wed, Jul 28, 2021 at 04:41:56PM +0200, Pierre-Alexis Ciavaldini wrote:

Hi Tom,

/etc/fw_env.config has this contents: /boot/u-boot/uboot.env 0x0000 0x4000 /boot/u-boot/uboot-redund.env 0x0000 0x4000

And what if you turn off redundant environment support? Mender does strongly recommend that, but you can just turn it off. Does that get you working environment from file and fw_setenv/fw_printenv working?

Thank you, PA

On Jul 28 2021, at 4:39 pm, Tom Rini trini@konsulko.com wrote:

...

On Tue, Jul 27, 2021 at 04:44:20PM +0200, Pierre-Alexis Ciavaldini wrote:

...

Hi,

I'm trying to integrate u-boot in our project that is a custom scripted build without yocto, for use with mender. The complete discussion can be found here : https://hub.mender.io/t/pi3-usb-boot-support/595/54?u=peac The problem is that when issuing saveenv in u-boot, it responds with "Saving Environment to FAT... OK" but then using fw_printenv in the booted linux, does not show saved variables.

The system currently boots because i've tricked it by getting the compiled-in env over uart (env print -a) and made a uboot.env using mkenvimage manually to enable fw_printenv to work. I've noticed that when deleting "/boot/u-boot/uboot.env", u-boot's saveenv does not re-create it, so it seems to me that saveenv does not write uboot.env. Here's the complete project files : https://git.iostud.io/cosmos/u-boot/-/tree/cosmos relevant modified files are:

• configs/rpi_4_32b_defconfig
• include/config_mender_defines.h
• include/env_mender.h
• include/configs/rpi.h
• include/env_default.h
• include/config_mender.h

Any help or investigating direction would be greatly appreciated.

What does your /etc/fw_env.config file look like?

Tom

On Wed, Jul 28, 2021 at 05:25:48PM +0200, Pierre-Alexis Ciavaldini wrote:

Hi,

When I did, mender complained about it : include/config_mender.h:41:3: error: #error CONFIG_SYS_REDUNDAND_ENVIRONMENT is required for Mender to work. Make sure that: 1) All the instructions at https: 41 | # error CONFIG_SYS_REDUNDAND_ENVIRONMENT is required for Mender to work. Make sure that: 1) All the instructions at https://docs.mender.io/system-updates-yocto-project/board-integration/bootlo... have been followed. 2) All required layers are included in bblayers.conf, including any board specific layers such as meta-mender-<board>. Check also https://docs.mender.io/troubleshoot/yocto-project-build for Known Issues when upgrading.

I guess I could disable the check, but even so I'm not sure it would work as uboot.env does not get written ?

Yes, you should disable that check. Then you can debug the fw_printenv issue by itself.

Thank you, PA

On Jul 28 2021, at 5:23 pm, Tom Rini trini@konsulko.com wrote:

...

On Wed, Jul 28, 2021 at 04:41:56PM +0200, Pierre-Alexis Ciavaldini wrote:

...

Hi Tom,

/etc/fw_env.config has this contents: /boot/u-boot/uboot.env 0x0000 0x4000 /boot/u-boot/uboot-redund.env 0x0000 0x4000

And what if you turn off redundant environment support? Mender does strongly recommend that, but you can just turn it off. Does that get you working environment from file and fw_setenv/fw_printenv working?

...

Thank you, PA

On Jul 28 2021, at 4:39 pm, Tom Rini trini@konsulko.com wrote:

...

On Tue, Jul 27, 2021 at 04:44:20PM +0200, Pierre-Alexis Ciavaldini wrote:

...

Hi,

I'm trying to integrate u-boot in our project that is a custom scripted build without yocto, for use with mender. The complete discussion can be found here : https://hub.mender.io/t/pi3-usb-boot-support/595/54?u=peac The problem is that when issuing saveenv in u-boot, it responds with "Saving Environment to FAT... OK" but then using fw_printenv in the booted linux, does not show saved variables.

The system currently boots because i've tricked it by getting the compiled-in env over uart (env print -a) and made a uboot.env using mkenvimage manually to enable fw_printenv to work. I've noticed that when deleting "/boot/u-boot/uboot.env", u-boot's saveenv does not re-create it, so it seems to me that saveenv does not write uboot.env. Here's the complete project files : https://git.iostud.io/cosmos/u-boot/-/tree/cosmos relevant modified files are:

• configs/rpi_4_32b_defconfig
• include/config_mender_defines.h
• include/env_mender.h
• include/configs/rpi.h
• include/env_default.h
• include/config_mender.h

Any help or investigating direction would be greatly appreciated.

What does your /etc/fw_env.config file look like?

Tom

-- Tom