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Known Issues with Robots

LOLA: Failure Writing Data

This error seems to accur sometimes after the robot comes back from being repaired when use a custom OS on the NAO.

Symptoms

Cognition is started, LEDs are working, but the robot is unable to move the joints.

Analysis

  1. login through SSH
  2. run journalctl
  3. the output should be showing following repeating error messages

terminal output

Reason

The reason seems to be a version-mismatch between the firmware of the joints and the communication protocol of the LOLA in the custom OS.

Solution

  1. flash an original Aldebaran OpenNao OS
  2. flash the custom OS again