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I tried to install the Ubuntu but had notice a problem twice and it will allow to get in to the desktop, but it appears the login to write a username and a password. I tried ignore it, put space, create a name, how can I login at first time? It happens because there was a problem during the installation? And how can I identify and solve this problem? I followed all the steps, burned a DVD with the Ubuntu system, boot the computer with the DVD, until the step to choose install or try (I chose install).

Eliah Kagan
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Sandra
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  • You said you can get to a desktop. Are you talking about the desktop *while you're installing*, or afterwards? If it's afterwards, are you saying that you can boot into a working, usable Ubuntu system (without the install DVD in the computer)? If so, does the login screen (or whatever else is asking for your username and password) appear *before* you get a working desktop, or does it appear at some point *after*? If after, this could be the screen locking automatically, and asking for your password to unlock it, but it wouldn't ask for your username. If before, are you logging in as guest? – Eliah Kagan Feb 17 '13 at 14:40
  • The password for most things in Ubuntu is the one you set during installation, so if you don't remember setting one (or if you set a blank password and you're unable to authenticate successfully with it), then you should be able to solve the problem by [resetting the password to something that is not blank](http://askubuntu.com/questions/24006/how-do-i-reset-a-lost-administrative-password). However, we won't really be able to answer your question definitively until you explain what's going on in more detail. Please edit your question to provide the information I've requested. – Eliah Kagan Feb 17 '13 at 14:43

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A username cannot contain white spaces and it must be a single word. A name can be your name [space] surname.

It is usually recommended to only use usernames that begin with a lower case letter or an underscore, followed by lower case letters, digits, underscores, or dashes. They can end with a dollar sign.In regular expression terms: [a-z_][a-z0-9_-]*[$]? On Debian, the only constraints are that usernames must neither start with a dash ('-') nor contain a colon (':') or a whitespace (space: ' ', end of line: '\n', tabulation: '\t', etc.). Note that using a slash ('/') may break the default algorithm for the definition of the user's home directory. Usernames may only be up to 32 characters long

ergoproxy
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  • Are you thinking that this is happening *during* the installation, when the user sets their username and password, rather than *after* installation? The question is vague but may be consistent with this interpretation. Can you expand this to explain the difference between *username* and *name* in greater detail? (Also, are there other characters besides whitespace characters, that cannot be present in a username? You may want to mention that it cannot *start* with a number...) – Eliah Kagan Feb 17 '13 at 15:27
  • It is usually recommended to only use usernames that begin with a lower case letter or an underscore, followed by lower case letters, digits, underscores, or dashes. They can end with a dollar sign.In regular expression terms: [a-z_][a-z0-9_-]*[$]? On Debian, the only constraints are that usernames must neither start with a dash ('-') nor contain a colon (':') or a whitespace (space: ' ', end of line: '\n', tabulation: '\t', etc.). Note that using a slash ('/') may break the default algorithm for the definition of the user's home directory. Usernames may only be up to 32 characters long. – ergoproxy Feb 17 '13 at 16:42
  • Yes, what I'm suggesting is that you add some of this information to your answer. – Eliah Kagan Feb 17 '13 at 19:49