jay@jay-Lenovo-G50-70:~$ sudo -i [sudo] password for jay: Sorry, try again. [sudo] password for jay: root@jay-Lenovo-G50-70:~# sudo apt-get update Hit:1 http://security.ubuntu.com/ubuntu xenial-security InRelease Hit:2 http://in.archi

Please tell us what your problem is, and we will be glad to help.

Can you please give the full output. Can you also please state the issue you are experiencing.

Little tip, if you become root with "sudo -i" then you don't need to use sudo as you are root. Sudo has a grace period as well (10 mins or so). Any subsequent commands ran prefixed with sudo will not re-request your password, so "sudo -i" in this case is completely redundant if you are going to add sudo to every command, even as root.

It's a common confusion.

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