user login:? I cannot Boot, but Install OK. Please Help

02-06-2015 22:38:13 name at domain:
> I boot from grub. I see welcome grub and Trisquel entry
on a line, and there
> are no more OS in spite I got many drives. GRUB does
not ask me anything.
> then something loads and I got a black screen telling me
>
> myusername login: Idontknow
> Password.******
>
> I receive a welcome message so I suppose Im inside
Trisquel somehow. I can
> try reinstall to check out if maybe installer required me to
add this data
> of course, I m trying to install on a /sdd the only possible
way for me to
> have a succesfull installation it has been text mode...
> but well sadly I got this issue o the login/password
combination: I got
> password, I don t know my user login but even it has
been a mistake it would
> be nice to know how to solve it, maybe from terminal on
live CD?, but I
> don´t know how to proceed.

Hi,

If that prompt is asking for a system user and password,
chances are that we might be able to come up with a
solution, specially knowing that you already know the
password for such "unknown" user. Besides, if you're
getting a terminal prompt, even if you are sure to have select
at least one graphical environment, such as GNOME, which
is provided by default with Trisquel; or KDE, provided by
Triskel, chances are that the manufacturer of the computer's
graphics card, this being the part responsible for trowing
nice images to the display, doesn't care for the user's
freedom because the manufacturer didn't develop a free
software capable of interacting with that graphics card.

So, assuming everything here to be true, then...

1. Boot into the live media;

2. Mount the partition where the installed system is (if you
have a file manager/explorer like Nautilus or Dolphin, just
locate the partition at the left of their windows and do a
single click on it);

3. Take note of the location where the partition has been
mounted (it's usually at /media/[Your
username/"trisquel"]/[Partition label]/).

4. Open a terminal and do:

sudo sed --quiet '$ p' [Location of the mounted
partition]/etc/shadow

5. We are using GNU Sed to read the special file named
"shadow", select only the its last line, and print the selection.
The "shadow" file stores usernames and passwords (don't
panic, the passwords are NOT in plain text). The last line, in
most cases, stores the most recent user created in that
system. In a new installation, the most recent user is actually
the one used by the computer user himself;

6. Take note of the name at the start of the line until the first
colon (":"), this is the username;

7. Close the current terminal;

8. Unmount the partition of the installed system;

9. Reboot to the installed system;

10. When asked, use the username noted and your
password.

12. Enjoy your freedom, and if possible, change your
graphics card soon. :D

Respectfully, Adonay.
Have a nice day.

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