login as root in beaglebone green

[yusmi...@gmail.com]

Hii all, 
I'm a newbe to the BBG, usually I'm using arduino to my electronic project, but I want to upgrade my electronic project using beaglebone green
I'm using "Flasher"debian 9.5 image and when I using putty to login as root, I can't login, but when I login as debian I can login, my problem is, is that possible to login as root in BBG, not using command "sudo su" on terminal

Regards,

--
Mii

[Robert Nelson]

You can login as "root" over the serial interface...

ssh has "root" disabled by default due to security reasons..

If you don't care about security, you can enable it via:

https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#i_take_full_responsibility_for_knowing_my_beagle_is_now_insecure

Regards,
--
Robert Nelson
https://rcn-ee.com/

[KenUnix]

Please don't use "sudo su". That's redundant. You are saying SuperUserDO followed by "SuperUser"

Use "sudo -s"

It's one simple step but keeps security where it should be.

Ken