[SOLVED] adduser fail?

[JeSuisFlaneur]

Clean install. Tried to use su - to add sudo. Terminal returns sudo already added.

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mark@Lexington:~$ sudo deja-dup
[sudo] password for mark: 
mark is not in the sudoers file.  This incident will be reported.

mark@Lexington:~$ id
uid=1000(mark) gid=1000(mark) groups=1000(mark),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),109(netdev),112(bluetooth),116(lpadmin),117(scanner)

mark@Lexington:~$ sudo deja-dup
[sudo] password for mark: 
mark is not in the sudoers file.  This incident will be reported.

I tried using an response at https://stackoverflow.com/questions/478 ... e-reported. visudo and add my user credentials per that page, but it failed.

I cannot run deja-dup to restore my backup'd files to /home partition. Anybody know what I did wrong? Help, please.

[andre@home]

Sometimes you have to logout and then login again when you just did some changes for the user you were logged in.
Workaround: do it as root...
https://www.linuxuprising.com/2019/09/f ... -file.html

[JeSuisFlaneur]

I did log out and log in.

Terminal output AFTER the log-out/in

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mark@Lexington:~$ groups
mark cdrom floppy audio dip video plugdev netdev bluetooth lpadmin scanner
mark@Lexington:~$ sudo apt update
[sudo] password for mark: 
mark is not in the sudoers file.  This incident will be reported.
mark@Lexington:~$ su -
Password: 
root@Lexington:~# apt install sudo
Reading package lists... Done
Building dependency tree       
Reading state information... Done
sudo is already the newest version (1.8.27-1+deb10u2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@Lexington:~# exit
logout
mark@Lexington:~$ id
uid=1000(mark) gid=1000(mark) groups=1000(mark),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),109(netdev),112(bluetooth),116(lpadmin),117(scanner)
mark@Lexington:~$ whoami
mark
mark@Lexington:~$ sudo apt update
[sudo] password for mark: 
mark is not in the sudoers file.  This incident will be reported.

[cuckooflew]

Show us your actual sudoers file, so we can see what you actually did, use code boxes please, the instructions in that link are rather mixed up, so it is impossible to guess what you actually did.
But ,

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user_name ALL=(ALL)  ALL 

*****important: "user_name", is your user name: eg: if I used it, mine would be:

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cuckooflew ALL=(ALL)  ALL 

Is correct, that is what you should add, DO NOT use nano, or any random text editor, like they said.
You must use 'visudo' , and you must be root to do this.
Can you log in as root ? I hope you did set a root password when you intsalled, if not then we need to explain that as well, use

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$su -
$ password: (enter the root password you set when installing) 

Note: For others as well, this is one reason you should all ways be sure to set a root password when installing.

by JeSuisFlaneur »I cannot run deja-dup to restore my backup'd files

Actually if you can log in as root, using

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 su - 

you should be able to run it as root, personally I think "sudo" and sudoers is a bunch of crap, I do not use that myself, but any way the others "follow the crowd" do, and that is another topic, sorry.
So any way, after you login as root, type :

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#  visudo /etc/sudoers 

Then edit it as needed, save and exit. I think you may need to logout and login again, first but don't remember.
There is better tutorials and documentation on this at the Debian.org website, and the Debian wiki, use some search foo to find it... I will do that for you, in a little while,...first I need to take some medicine, and then I will be back. Or maybe some one else will post the links, I never can remember them, so allways have to do some search foo my self.

[Bulkley]

. . . personally I think "sudo" and sudoers is a bunch of crap . . .

+1.

[JeSuisFlaneur]

I requires more than log out and log in.

I rebooted. Now it works.

Thank you for taking your time to stay with me. Thank you, Linux Community.

[RU55EL]

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