Understanding the boot process
Boot process - status ¶
During the boot process, the color of the Status LEDs lets you know if Pepper is:
Boot process - progress indicator ¶
The boot process may take a long time, especially when upgrading the system. The animation displayed by the LEDs provides information about the boot process.
Switching on ¶
A progress bar is displayed on the Ear LEDs :
Progression bar Means ... 0 % The robot is in the early boot step, initializing the hardware. 25 % Hardware is initialized. 50 % Filesystems are ready to use. 75 % Network and ssh are started. 100 % NAOqi is started.
Step 2 : all LEDs are off for a while, then Blue , then quickly Red and Green .
Step 3 : the robot says “ OGNAK GNOUK ”.
In case of system upgrade, the boot process can take much more time (30 minutes in case of factory reset) and the LEDs animation is different.
- For a while, the Eye LEDs and the Status LEDs fade in, smoothly and repeatedly, from Black to White .
The Status LEDs fade in, repeatedly, from Black to Blue .
The progress is displayed on the Ear LEDs :
Ear LEDs Meaning A - The front half-circle is blinking. Checking integrity of the image to be flashed. B - Animation like a progress bar. The OS image is being flashed. C - The rear half-circle is blinking. Checking integrity of the flashed data.
D - Factory reset only
The front and rear half-circles are alternately blinking.
Restoring factory settings.
When something wrong occurs during the boot process, and if the system fails to recover a usable state, then the Status LEDs fade in and out, smoothly and repeatedly, from Black to Red .
In such case, try to reboot the robot.
If the problem persists, contact the support.
LEDs - Pepper
A - Eye LEDs, B - Ear LEDs, C - Status LEDs