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I installed Ubuntu 12.04 and it's not updating when I try. I changed may server address for Ubuntu and DNS but it's still not working. I'm trying to install iotop but it doesn't. I have already changed my Ubuntu server location and changed DNS to Google's default server. I have already installed Zental correctly, but iotop doesn't appear, how can I install it?

Here the error log:

 root@ubuntu:~# sudo apt-get update
Ign http://archive.zentyal.org 3.0 InRelease                                                                                                 
Err http://archive.zentyal.org 3.0 Release.gpg                                                                                               
  Unable to connect to archive.zentyal.org:http:
Ign http://archive.zentyal.org 3.0 Release                                                                                                   
Ign http://archive.zentyal.org 3.0/extra TranslationIndex                                                                                    
Ign http://archive.zentyal.org 3.0/main TranslationIndex                                                                                     
Err http://archive.zentyal.org 3.0/main i386 Packages                                                                                        
  Unable to connect to archive.zentyal.org:http:
Err http://archive.zentyal.org 3.0/extra i386 Packages                                                                                       
  Unable to connect to archive.zentyal.org:http:
Err http://archive.zentyal.org 3.0/extra Translation-en_US                                                                                   
  Unable to connect to archive.zentyal.org:http:
Err http://archive.zentyal.org 3.0/extra Translation-en                                                                                      
  Unable to connect to archive.zentyal.org:http:
Err http://archive.zentyal.org 3.0/main Translation-en_US                                                                                    
  Unable to connect to archive.zentyal.org:http:
Err http://archive.zentyal.org 3.0/main Translation-en                                                                                       
  Unable to connect to archive.zentyal.org:http:
Ign http://ppa.launchpad.net precise InRelease                                                                                               
Err http://ppa.launchpad.net precise Release.gpg                                                                                             
  Unable to connect to ppa.launchpad.net:http:
Ign http://ppa.launchpad.net precise Release                                                                                                 
Ign http://ppa.launchpad.net precise/main TranslationIndex                                                                                   
Err http://ppa.launchpad.net precise/main Sources                                                                                            
  Unable to connect to ppa.launchpad.net:http:
Err http://ppa.launchpad.net precise/main i386 Packages                                                                                      
  Unable to connect to ppa.launchpad.net:http:
Err http://ppa.launchpad.net precise/main Translation-en_US                                                                                  
  Unable to connect to ppa.launchpad.net:http:
Err http://ppa.launchpad.net precise/main Translation-en                                                                                     
  Unable to connect to ppa.launchpad.net:http:
Ign http://archive.canonical.com precise InRelease                                                                                           
Err http://archive.canonical.com precise Release.gpg                                                                                         
  Unable to connect to archive.canonical.com:http: [IP: 91.189.92.191 80]
Ign http://archive.canonical.com precise Release                                                                                             
Ign http://archive.canonical.com precise/partner TranslationIndex                                                                            
Err http://archive.canonical.com precise/partner Sources                                                                                     
  Unable to connect to archive.canonical.com:http: [IP: 91.189.92.191 80]
Err http://archive.canonical.com precise/partner i386 Packages                                                                               
  Unable to connect to archive.canonical.com:http: [IP: 91.189.92.191 80]
Err http://archive.canonical.com precise/partner Translation-en_US                                                                           
  Unable to connect to archive.canonical.com:http: [IP: 91.189.92.191 80]
Err http://archive.canonical.com precise/partner Translation-en                                                                              
  Unable to connect to archive.canonical.com:http: [IP: 91.189.92.191 80]
Ign http://us.archive.ubuntu.com precise InRelease                                                                                           
Ign http://us.archive.ubuntu.com precise-updates InRelease                                                                                   
Ign http://us.archive.ubuntu.com precise-backports InRelease                                              
Err http://us.archive.ubuntu.com precise Release.gpg                                                      
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates Release.gpg                                              
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports Release.gpg                                            
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Ign http://us.archive.ubuntu.com precise Release                                                          
Ign http://us.archive.ubuntu.com precise-updates Release                                                  
Ign http://us.archive.ubuntu.com precise-backports Release                                                
Ign http://us.archive.ubuntu.com precise/main TranslationIndex                                            
Ign http://us.archive.ubuntu.com precise/multiverse TranslationIndex                                      
Ign http://us.archive.ubuntu.com precise/universe TranslationIndex                                        
Ign http://us.archive.ubuntu.com precise-updates/main TranslationIndex                                    
Ign http://us.archive.ubuntu.com precise-updates/multiverse TranslationIndex                              
Ign http://us.archive.ubuntu.com precise-updates/universe TranslationIndex                                
Ign http://us.archive.ubuntu.com precise-backports/main TranslationIndex                                  
Ign http://us.archive.ubuntu.com precise-backports/multiverse TranslationIndex                            
Ign http://us.archive.ubuntu.com precise-backports/universe TranslationIndex                              
Err http://us.archive.ubuntu.com precise/main Sources                                                     
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/universe Sources                                                 
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/multiverse Sources                                               
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/main i386 Packages                                               
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/universe i386 Packages                                           
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/multiverse i386 Packages                                         
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/main Sources                                             
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/universe Sources                                         
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/multiverse Sources                                       
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/main i386 Packages                                       
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/universe i386 Packages                                   
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages                                 
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/main Sources                                           
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/universe Sources                                       
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/multiverse Sources                                     
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/main i386 Packages                                     
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/universe i386 Packages                                                                    
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/multiverse i386 Packages                                                                  
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/main Translation-en_US                                                                              
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/main Translation-en                                              
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/multiverse Translation-en_US                                     
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/multiverse Translation-en                                                                           
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/universe Translation-en_US                                                                          
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise/universe Translation-en                                                                             
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/main Translation-en_US                                                                      
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/main Translation-en                                      
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/multiverse Translation-en_US                             
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/multiverse Translation-en                                
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/universe Translation-en_US                                                                  
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-updates/universe Translation-en                                                                     
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/main Translation-en_US                                                                    
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/main Translation-en                                                                       
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/multiverse Translation-en_US                           
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/multiverse Translation-en                                                                 
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/universe Translation-en_US                                                                
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
Err http://us.archive.ubuntu.com precise-backports/universe Translation-en                                                                   
  Unable to connect to us.archive.ubuntu.com:http: [IP: 91.189.91.13 80]
23% [Connecting to security.ubuntu.com (91.189.91.14)] [Connecting to archive.ubuntu.com (91.189.92.202)]

ping:

root@ubuntu:~# ping -c4 google.com
PING google.com (202.166.193.187) 56(84) bytes of data.
64 bytes from 187.cache.google.com (202.166.193.187): icmp_req=1 ttl=62 time=3.08 ms
64 bytes from 187.cache.google.com (202.166.193.187): icmp_req=2 ttl=62 time=4.30 ms
64 bytes from 187.cache.google.com (202.166.193.187): icmp_req=3 ttl=62 time=3.50 ms
64 bytes from 187.cache.google.com (202.166.193.187): icmp_req=4 ttl=62 time=4.34 ms

error:

root@ubuntu:~# sudo apt-get install iftop
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package iftop
share|improve this question
    
Can you please show us the full error? You can edit your question by clicking on the edit link right underneath it. Or, you can copy the error to paste.ubuntu.com and give us the URL. –  Alaa Sep 1 '13 at 5:57
    
paste.ubuntu.com/6055880 –  sumit Sep 2 '13 at 17:09
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1 Answer 1

From your comment, it seems that you are trying to install iftop, but it's telling you it's not there.

iftop is in the Universe repository, so you need to enable it. Visit this question: How do I enable the "Universe" repository? to enable it. When you enable it, first do apt-get update, then try apt-get install iftop.


The correct command to update your package list is:

sudo apt-get update

Then, the command to actually upgrade your Ubuntu (i.e. download and install the newer versions of packages) is:

sudo apt-get upgrade

See my answer to this question: http://askubuntu.com/a/344363/52726 for a little bit more explanation on the difference between apt-get update and apt-get upgrade.

The command to install packages (or "applications") is:

sudo apt-get install <packagename>

Where <packagename> is the name of the application. For example skype, vlc, and so on.

The command you ran, apt-get install update is telling Ubuntu to install a package called update, which doesn't exist.

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