I am on user myuser on Ubuntu and it is only assigned to its own group myuser. sudo -i gives:
user is not in the sudoers file
I cannot log in to a wifi because it is asking for a password and myuser password is failing.
There is no admin on my machine, is there a way to add myuser to the other groups without sudo? Is a complete format/reset of the machine necessary?
The os is Ubuntu 22.04.1 LTS
I cannot access Grub recovery mode because I do not have sudo access to change /etc/default/grub file (recovery mode not loading on holding shift key)
