Hello everyone,
First of all, I'm sorry for my English. I'll do my best.
Currently armbian is installed in the mmc (although I tried the same test with a sd memory).
Now, with lscpu I can see that only cpu0 is enabled; 1-3 are off.
When I try: sudo echo '1' | Sudo tee / sys / devices / system / cpu / cpu1 / online to activate cpu1, shell replies with: online: Permission denied
I'm looking for options on root permissions or sysfs mount options; For now, I can not find a solution.
Thanks in advance for your help.