Linux base device not getting shutdown

Question

I try to shutdown my embedded system running with Linux environment using shutdown -h now. But it is rebooting my system again. So can anyone give me suggestion how to shutdown my system or resolve this issue.

Or any possible reason of this issue?

Linux version is 2.37

Answer 1

Try using poweroff command. When posting a question please mention the Linux kernel version being used.

Answer 2

Answer to your question is

shutdown -P now 

Jaybee is near correct, where p should be upper case.