Troubles updating from 3.4-rc1 to 3.4-rc4

Hello, tried to update and upgrade today (usual apt-get command).

After updating i got a message:

Unable to open file /sys/class/pwm/pwmchip0/pwm0/duty_cycle: No such file or directory

Arducopter doesn’t start anymore.

During installation it asked me if i wanted to calibrate and i said no, thinking of doing it later, maye this caused the issue?

All this on Navio2



Please post output of uname -a,lsmod | grep rcio and dmesg | grep rcio.

Is this happening after a reboot?

Hello George, it looks like the issue got solved once i reinstalled and answered YES to the accel calibration during setup.

Thank you for your help, if you still think you need me to run the command and post the outcome please let me know.


No, thank you, there’s no need in that anymore. I’m glad the issue got solved.