[RAUC] RAUC fails to mark slot as good --> fw_utils access error on mmc

[RAUC] RAUC fails to mark slot as good --> fw_utils access error on mmc

[Steffen Kothe]

Hello mailinglist,

Following error message occured after start of system.
Log output comes from systemd (rauc.service)
systemctl status rauc.service

Apr 24 13:48:43 pixi-cdl100 rauc[478]: Write error on
> /dev/mmcblk3boot0: Operation not
> permitted                                       > Apr 24 13:48:43
pixi-cdl100 rauc[478]: Error: can't write fw_env to
> flash                                                              > 
Apr 24 13:48:43 pixi-cdl100 rauc[478]: [[0;1;39mrauc mark: Failed
> marking 'rootfs.0' as good: Failed to run fw_setenv: Child process
ex> ited with code
> 1[[0m                                                                
>                                                    > Apr 24 13:53:51

fw_utils have the correct setup, a manual call of fw_utils 
shows the correct environment of uboot. 

I fixed this problem with a script, starting before the rauc daemon,
forcing the mmcblk3bootX devices to enable read/write. 

Why do I need to set the "force_ro" to 0, before rauc can access the u-
boot environment? 
Why RAUC does not handle the "force_ro" after start?

Attached the script, which is triggered before the rauc daemon. 

#!/bin/bash                              echo 0 >> /sys/block/mmcblk3boot0/force_ro
echo 0 $gt;> /sys/block/mmcblk3boot1/force_ro 

Best Regards
Steffen 

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Re: [RAUC] RAUC fails to mark slot as good --> fw_utils access error on mmc

[Enrico Joerns]

Hi Steffen,

On 4/24/19 4:17 PM, Steffen Kothe wrote:
> Hello mailinglist,
> 
> Following error message occured after start of system.
> Log output comes from systemd (rauc.service)
> systemctl status rauc.service
> 
> Apr 24 13:48:43 pixi-cdl100 rauc[478]: Write error on
>>   /dev/mmcblk3boot0: Operation not
>>   permitted                                       > Apr 24 13:48:43
> pixi-cdl100 rauc[478]: Error: can't write fw_env to
>>   flash                                                              >
> Apr 24 13:48:43 pixi-cdl100 rauc[478]: [[0;1;39mrauc mark: Failed
>>   marking 'rootfs.0' as good: Failed to run fw_setenv: Child process
> ex> ited with code
>>   1[[0m
>>                                                      > Apr 24 13:53:51
> 
> fw_utils have the correct setup, a manual call of fw_utils
> shows the correct environment of uboot.
> 
> I fixed this problem with a script, starting before the rauc daemon,
> forcing the mmcblk3bootX devices to enable read/write.
> 
> Why do I need to set the "force_ro" to 0, before rauc can access the u-
> boot environment?
> Why RAUC does not handle the "force_ro" after start?
> 
> Attached the script, which is triggered before the rauc daemon.
> 
> #!/bin/bash                              echo 0 >> /sys/block/mmcblk3boot0/force_ro
> echo 0 $gt;> /sys/block/mmcblk3boot1/force_ro

sorry for being a bit unresponsive, but I was only rarely in the office the last 
weeks. Did you resolve your issue?

Is that intentionally that you have the environment in the eMMC boot partitions? 
Don't you loose the state after updating the bootloader?

We had a similar question as issue on GitHub some time ago:

https://github.com/rauc/rauc/issues/165

Best regards, Enrico

-- 
Pengutronix e.K.                           | Enrico Jörns                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5080 |
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