Remove ubuntu by command

Question

I have problem with the system. Probably error. Want to remove ubuntu and reinstall it. I can just write in the terminal. Can't open the computer... there is a command to remove ubuntu? It will really help me if u know. .. tnx Edit I got massage that there is problem in the system. I ignored it. After few minutes the computer stuck and opened terminal window that asked me to log in. I log in. Don't know what I should do now since I can't go out from this window

Answer 1

What you try to do is not the way to "remove" Ubuntu. When you want to remove the whole system and reinstall it, boot from the Ubuntu installation media, select Try Ubuntu without installing and on the Live desktop, open GParted. Format the Ubuntu partition with ext4.

Close GParted and click on Install Ubuntu. When asked, choose Something else. Select the partition you have formatted before - select / (root) as mount point and ext4 as format.
Start the installation and when finished, reboot into the new installed Ubuntu system.

Before reinstalling Ubuntu, you should try to find out what caused the problem. Maybe it can be fixed. Even if you want to reinstall the operating system, it is useful to know about it, mainly to avoid experiencing the same problems and issues again after reinstalling the Ubuntu system.