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Well, I am a Python developer working on object-oriented programming with data science in cybersecurity. In this operation, for some reason (better not to say), I switched the operating system.

The problem is:

I am able to login to Ubuntu but can't authenticate when installing software, updating Ubuntu, or editing files. I am 100% sure that I typed the correct password; in fact, I can't update Ubuntu because authentication is not working properly.I have read so much about how to fix this problem but I didn't get any appropriate answers. Even though I can't open the terminal, when I click on the terminal icon, it shows loading but never loads; in fact, I have tried the hot key (control + alt + T), but it didn't work. So that I can't install any software or update Ubuntu.Neither reset my password.

What I have tried:

I have reinstalled a fresh of Ubuntu image four times (Ubuntu LTS 22.04 Jammy Jellyfish 64-bit) I have attended the unattended installation on VirtualBox.

what I think the problem is

Dark Cyber King
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    Have you altered the system Python version? ... See for example: Terminal and other apps suddenly won't open – Raffa Aug 26 '23 at 09:24
  • Please be clear with details; you mention 22.04 & jammy jellyfish so thank you, but 64-bit is unclear as there are multiple 64-bit architectures, ie. amd64, ppc64el, arm64, riscv64... however as only ARM cpus have 32bit + 64bit option maybe you mean arm64 ?? I suspect this isn't so (x86 32-bit ended with disco or 19.04). 64-bit is only helpful if you say which 64-bit. – guiverc Aug 26 '23 at 10:26
  • What do you mean exactly with "authenticate". The login process is the "authentication". The second part would be "Authorization". Do you mean "authorization for installing software" ? can you provide error messages or a screenshot. I guess you do not have "sudo" rights. – Marco Aug 26 '23 at 12:58
  • the version is 19.04 – Dark Cyber King Nov 06 '23 at 06:46
  • Ubuntu 19.04 is EOL or end-of-life (http://fridge.ubuntu.com/2020/01/23/ubuntu-19-04-disco-dingo-end-of-life-reached-on-january-23-2020/) thus off-topic on this site (https://askubuntu.com/help/on-topic) unless your question is specific to help moving to a supported release of Ubuntu. Use a LTS or long-term-support release if you don't like release-upgrading every 6-9 months. https://help.ubuntu.com/community/EOLUpgrades – guiverc Nov 06 '23 at 06:49

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