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I'm a newbie in Ubuntu and I have a problem in log-in scene. It doesn't response...

I'm using ubuntu 20.04

what I did is,

  1. make: flex: Command not found I followed above link 'Answer'. I removed whole sentences in /etc/apt/sources.list and wrote

code

    deb http://old-releases.ubuntu.com/ubuntu/ utopic main restricted
    deb-src http://old-releases.ubuntu.com/ubuntu/ utopic main restricted
    deb http://old-releases.ubuntu.com/ubuntu/ utopic-updates main restricted
    deb-src http://old-releases.ubuntu.com/ubuntu/ utopic-updates main restricted
    deb http://old-releases.ubuntu.com/ubuntu/ utopic universe multiverse
    deb-src http://old-releases.ubuntu.com/ubuntu/ utopic universe multiverse
    deb http://old-releases.ubuntu.com/ubuntu utopic-security main restricted
    deb-src http://old-releases.ubuntu.com/ubuntu utopic-security main restricted
    deb http://old-releases.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse

like that Answer said. and I did

apt-get update
apt-get dist-upgrade
apt-get install flex

too.

and I did reboot, and I got log-in scene. It doesn't response.... keyboard is good because when i hit Num Lock button, the indicating light toggles.

Please.. help me..

Mike
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0 Answers0