Hi! Kindly advise why is my password [sudo] rejected ?
while trying to install a downloaded apps for debian
I have tried to key-in my sudo password in the terminal.
But it keep rejecting with the message "[user] is not in the sudoer file"
I have tried both the "root" & "user password" individually but the same rejection happens
What has happen?
Thanks for helping.

Hi,

pretty much as the error says. sudo is not configured to provide root access for that user.
Has it ever worked? Did you change something?

Evo2.

Unless something has changed recently, Debian does not come with sudo configured for use.

Try using su. That works fine for me in Debian.

From the console run the 'groups' command to list all the groups the logged in user is part of.
If you see 'sudo' in the list then you have a problem with your password.

to evo-2 questions: No except for installing apps in the synpac repos.never temper with the system files
to frankbell suggestions: I have tried using su. It returns "root@desktop-QP:/home/stellar
to uteck suggestions: I type in "groups". It returns "root@desktop-QP:/home/stellar
What does it mean and what must I do now?
Thanks

Hi,
That is the "root prompt". In that state, you can install the package.

You need to run that as your normal user. Ie before running "su". The output should be single line listing the groups you are a member of. Eg something like
Depending on the output of the groups command, you may want to add yourself to the sudo group so that you can use sudo in the way most online instructions assume your system is configured. If so, we can tell you how.

Evo2.

It has changed "recently" (or at least it's an installer option now).
But the recommendation to use su instead still stands.
OP, please actually click on & read the links that are given to you.

Many thanks for been kind & forgiving.

As others have mentioned you don't need to use sudo in Debian, you can run the commands as root (without sudo). But if you feel you want to configure it on your system, the following are the instructions I followed to enable it on my Debian system:

https://www.linuxfordevices.com/tuto...ers-to-sudoers

>> Well it did ask for password when I tried to install "Dolibarr.CRM"
that is when I keyed the correct password. It returns the following:
" [sudo] password for handshake92 - sorry try again. handshake92 is not in the sudoer file.

It is strange for every time when I login into Debian desktop pc, I keyed my user password -it is accepted and while using the pc it will ask for password "authenication is required to mount ST1000x-xxx (/dev/sb2) Administrator -which i did key in the password without any problem.

However when I tried to add my "handshake92 to sudoer as advised-using Debian's ISO image -Xterm" terminal app.. The error is always as follows:
-1.$ su, password xxxxxx.
su:authentication failure.
handshake92 is not in sudoers file. This will be reported.

-2.handshake92@Desktop-QP61AKG:~$ usermod -aG sudo handshake92.
bash:usermod: command not found
Kindly advised what must I do?
Thanks for helping.

That is odd. The command is in /usr/sbin/usermod so try the full path?
Since it looks like you can su to root, another way would be to su to root, then edit /etc/groups and add your user to the sudo group like so;

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FYI debain does not include /user/sbin in a regular user's path which is why the OP sees the command not found error.

su switches to root but still uses the user's environment
su - switches to root but switches to root's environment too.

Yup, it was very annoying till I got used to always running su - instead of plain su.

Try adding the user to the sudoers file:

Switch to root user and then:

• Run 'visudo' (without the quotes)
• Scroll down to the User Privilege section and add the following line:

Save and exit. You should now be able to sudo

>>> As advised,in XTerm app,I type in at handshake92@DESKTOP-QP61AKG"~$ su, keyed-in my password and at.... (I type in visudo)
root@DESKTOP-QP61AKG:/home/handshake92# visudo
it returns:
bash: visudo: command not found
root@DESKTOP-QP61AKG:/home/handshake92#

Where did I go wrong? Kindly advise.Thanks for helping.

[SOLVED] Debian error msg: bash: visudo: command not found

Where did OP go wrong? IMO, trying to use sudo in debian.

May I suggest using a search engine to find your answers before going to a forum?

1 members found this post helpful.