0
votes
0answers
490 views

ubuntu 13.10 software center authentication error and okular cannot find component

I had installed 'Okular' but after the upgrade it gives error saying component not found. Thus i tried removing and installing again. But the software center gave following error. Software can't be ...
0
votes
0answers
38 views

unable upgrade 11.10 [duplicate]

Several attempts to upgrade went nowhere Update manager displays that system is up-to-date and launches a new active window stating : "Your Ubuntu release is not supported anymore." "You will not get ...
0
votes
1answer
60 views

Require password even though I removed it

Good day. One day I decided to remove the logon password from the setting. After that when I tried to change my other settings eg : install another language, Ubuntu states it required Authentication ...
1
vote
1answer
630 views

Authentication required to install plug-ins and application [duplicate]

I cannot install new plug in to my linux computer. It keeps asking authentication required that needs a password. I do not know what the password is. Pls help me identify the problem or remove the ...
1
vote
1answer
1k views

Authentication issue after Wubi installation

I am unable to log-in to Ubuntu with the username/password combination I gave on Wubi at the time of installation (incorrect username/password error). This happened twice; the first time I really ...
0
votes
1answer
252 views

Can't install Ubuntu 12.10 from USB

I can't install Ubuntu 12.10 from USB drive. I tried LiLi, UNetBootin, Universal usb installer and others for create USB. It boots and I can select "Try Ubuntu without installing" and "Install Ubuntu ...
1
vote
2answers
112 views

I get this message when I try to install software in the Software Center Ubuntu 12.10. No fixes I saw here helped

Software can't be installed or removed because the authentication service is not available. (org.freedesktop.PolicyKit.Error.Failed: ('system-bus-name', {'name': ':1.168'}): ...
1
vote
1answer
48 views

Ubuntu One Installer Win 7 Cannot find My Ubuntu One Account

When I run Ubuntu One installer on Win 7 Home Premium it gets as far as the screen that asks to log in with and existing Ubuntu One account or to create a new Ubuntu One account. When I enter my email ...
5
votes
2answers
5k views

Installed perfectly but password not working for login or authentication

I installed Ubuntu on an old XP machine (replaced XP with Ubuntu) and it seemed like it went well... Until I tried to download and install the suggested updates! The password I set during ...