apt error message
 

I installed ubuntu yesterday, it went pretty well, today i'm trying to fiddle with apt i'm getting this message, i'm new to linux and have difficulty interperting this error message

neshan@Neshan:~$ su
Password:
asu: Authentication failure
Sorry.
neshan@Neshan:~$ apt-get update
E: Could not open lock file /var/lib/apt/lists/lock - open (13 Permission denied)
E: Unable to lock the list directory
Is it because i'm not loged as root, how do i log as root?

what am i doing wrong, your expert advice is appreciated.

use sudo insted of su
ubuntu disables root by default (as a security feature)
if you want to enable it just type
enter YOUR password first, then what you want the root password to be twice.

Thank you, it worked, didn't know about sudo, i should collect more info about Ubuntu...

Regards
Neshan

Save you from enabling the root account