Unrecognized password with xubuntu

My question is the following: Are you able to log in as root (super-user)?

If yes, the problem is that you need to set your keyboard to French, so here is the command I always use to set my keyboard to English (us) or French (fr)



Change your keyboard language and we'll see what comes next.

Hi,

at the bottom of the screen, root@XXXXX is displayed, with the Xs corresponding to the password I have in memory.

Um... no, the XXXX after the @ usually corresponds to your machine's name.

I believe you've made a mistake during installation between the password and the machine name; -\

--
☮ Zen my nuggets ☯
Do something for the environment, close your windows and adopt a penguin. <('')

OK, thanks

so there would be the name of the machine, the computer password, and the user password.
I think I set the same word for all three during the installation, so I wouldn't make a mistake later.

To get out of this, would I need to type passwdyyyyy after root@XXXX, with yyyyy being my new password? (I think I'll use XXXXX again)

Is my interpretation correct?

What is surprising is that to open my computer, I have to type XXXX as if I were in qwerty, which writes root@XXXX completely normally, but to type passwd I need to do it with the qwerty keys

Thank you for everyone's insights

Bernard

Thank you both, I will take a serious look at this, it will take time to go through all the points of mamiemando unfortunately, I’m busy tonight.

As for Zip31, my keyboard is in QWERTY, but you just need to have a layout of this keyboard and type 'q' instead of 'a', 'm' instead of 'l', etc. and you can manage (I realize this while typing 'passwd' after 'root')

See you soon

Bernard

1) Make sure you are typing what you think

The remark from onegame93 is good.

If anything, you may not be able to log in because you're not typing what you think (typically when you think you are typing in azerty while actually typing in qwerty as he suggests).

Also check that it’s not a matter of caps lock or num lock. You can easily check by typing the beginning of your password in the area where you enter your login.

However, since the root profile is not enabled by default, you probably won’t be able to do what he suggests, at least not directly.

2) Check that it’s not a matter of disk space

This is a very credible explanation, especially following an update. If you have no disk space, your graphical mode cannot create a number of temporary files necessary for its launch.

You can easily check if you can log in in text mode:
https://www.mistra.fr/tutoriel-linux-mode-texte.html

If you can, then type the command

df -h

. If you find that some linux partitions are 100% full, we have found the cause (or one of the causes) of the problem.

A simple way to free up space is to clear the apt cache (which will allow you to free up disk space on the partition hosting

/var/cache/apt

, probably the

/

partition in your case):

sudo apt-get clean

Good luck.

Good evening everyone and thank you for your insights.

I will try to be clear

Following a previous update, I could no longer connect as the user password was denied.

At the top of the screen, I noticed "us," so I tried typing this password as if the keyboard was QWERTY.
So for example, instead of typing Francoise on the AZERTY keyboard of the computer, by typing Frqncoise, it works.

More recently, the computer prompted for an update for a new version of Ubuntu.

The password was refused, both the user password and the administrator password. Attempts using the same technique were completely unsuccessful.

Onegame's suggestion was unsuccessful.

After starting the computer and pressing Esc, we arrive at
Ubuntu
Advanced options for Ubuntu
Memory test.....
Memory test....

By selecting Advanced options for Ubuntu with the arrow keys and pressing Enter, we get to
Ubuntu with Linux
3 16.0-24 generic recovery mode

By selecting it and pressing Enter, we have a new screen with
re....
clean
Dpkg
.
.
.
root
syst...

By selecting root and pressing Enter

root@Francoise:~#_
appears at the bottom of the screen.

By typing a command for a new password, it appears
Enter the new Unix password
Once this new password is typed
Retype the new password
and this new password entered
passwd: authentication token manipulation error
Password not changed
root@Francoise:~#

If I do the same manipulation, and after
root@Francoise:~#
I type
root@Francoise:~# setxkbmap -layout fr
as suggested, it does nothing

It goes without saying that I am typing on an AZERTY keyboard but typing the keys corresponding to a QWERTY keyboard, and that setxkbmap indeed appears on the screen

There is no caps lock or numeric lock.

I have not yet had time to perform the disk space manipulations, but apparently, the quite old computer is not loaded at all; I will try.

Thank you, and see you later

Bernard

Suppose that the profile you usually use in graphic mode is "toto". Can you identify as "toto" in text mode?
https://www.mistra.fr/tutoriel-linux-mode-texte.html

What does it give?

df -h

Good luck

Thank you

I didn't see how to log in in text mode, since when I opened the computer, I didn't have the option to open a terminal, I could log in by typing the password in graphical mode, provided I typed the password as if I had a qwerty keyboard.

Once logged in this way, I could open a terminal without any problem.
In this terminal, the command df -h returned nothing.

However, mammiemando pointed me in the right direction by indicating that I could become root from this user account.
By using the method given in this link
http://doc.ubuntu-fr.org/root
in paragraph 2, I was able to re-enter a Unix password, the password was indicated as changed, and the update is currently being done (I am typing on another computer of course)

We will see later if I am still in qwerty at startup; if not, I will try the method proposed by onegame to try to switch it completely to French

Thank you all for your help, I will keep you updated as soon as version 15.04 is fully installed.

Aside from that, and regarding the password, the computer I am typing on is running Xubuntu and Windows XP. During startup, it asks if the boot should be done in Xubuntu or Windows, the default is Xubuntu, and I am not prompted for a password. However, if I leave the computer inactive for a few minutes, I have to type the password to wake it up.

The update is totally completed, unfortunately, the computer does not restart.

I am opening another post.

This article will help you solve your forgotten password issue.

https://guide.ubuntu-fr.org/desktop/user-forgottenpassword.html

Thank you
The password issue is resolved, you put me on the right track that allowed me to find the solution and .....unfortunately to do the update as the computer no longer starts since the update.

I will still check the guide, thank you

Bernard