Password change

[mainer]

the wiki page says the username change is "usermod -l NewUser -d /home/NewUser -m rock" but when I go into root I am unable to change anything I am getting "user rock is currently used by process 738 or invalid option -1      

You probably either logged out and then back in as root or used sudo to get root. Those both leave processes owned by "rock" and the command fails. The way I got around the problem was to reboot and log in as root (default password is root unless you have clanged it) to make the changes. That way user "rock" will not have any processes. I made all the user changes and root password at that login. 

I also noticed a glitch when rebooting. The Login Screen still lists "rock" as the user not the new name. This problem shows up in other applications as well. It is due to to a formatting error (after the changes) in the /etc/passwd file that is likely caused by the chfn command. Each line of /etc/passwd should look like:

user_name:x:1000:1000:chfn_name,,,:/home/user_name:/bin/bash

but the newly changed entry will look like:

user_name:x:1000:1000:rock,,,chfn_name:/home/user_name:/bin/bash

note the difference in the chfn (5th) field.

You can edit the file with the command:

Code:

sudo nano /etc/passwd

but be careful to only correct the bad field in that one line. Make a backup first.