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I am unable to upgrade from 12.10 to 13.04. It fails with the error message:

check your internet settings

My internet is working and I am able to browse the Internet, see emails, etc.

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Try turning off local firewall using below command. services ufw stop –  Rishee May 2 '13 at 9:39

1 Answer 1

Restart your system, login, and open a terminal and do this:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
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tried the above suggestion; i get "Failed to fetch suro.ubaya.ac.id/ubuntu/dists/quantal-security/multiverse/… Unable to connect to suro.ubaya.ac.Some index files failed to download. They have been ignored, or old ones used instead. –  Ramadurai May 2 '13 at 9:12
    
Please paste the results of cat /etc/apt/sources.list, along with the results for ls -lhaR /etc/apt/ in your question. –  haneefmubarak May 3 '13 at 2:50
    
unable to post it here since it is too long; can i send it by email? –  Ramadurai May 3 '13 at 3:12
    
No, just use the Ubuntu Pastebin: paste.ubuntu.com –  haneefmubarak May 4 '13 at 1:58
    
i did it just now –  Ramadurai May 16 '13 at 4:37

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