root account
Enabling the root account
| Enabling the Root account is rarely necessary. Almost everything you need to do as administrator of an Ubuntu system can be done via sudo or gksudo. If you really need a persistent Root login, the best alternative is to simulate a Root login shell using the following command... |
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sudo -i
To enable the Root account (i.e. set a password) use:
sudo passwd root
Use at your own risk!
| Logging in to X as root may cause very serious trouble. If you believe you need a root account to perform a certain action, please consult the official support channels first, to make sure there is not a better alternative. |
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Re-disabling your root account
| If for some reason you have enabled your root account and wish to disable it again, use the following command in terminal... |
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sudo passwd -dl root
Source :
https://help.ubuntu.com/community/RootSudo
