Ubuntu 16.04 upgrade

For diagnostic purposes please provide the output of the commands

uname -a
lsb_release -crid
sudo apt-get update
sudo apt-get dist-upgrade
sudo dpkg --audit

If you are on Precise you will need to first upgrade to Trusty. From Trusty you can then upgrade to Xenial. You cannot upgrade directly from Precise to Xenial unless you wipe Precise off the system and do a clean install of Xenial from CD / USB.

The clean install method will get you to Xenial sooner and will be a cleaner OS. You can restore your user data from your backups.

Hello,,

Thank you for your reply.

I did the following commands in the # 1 except the last two because there were errors at the end of the command #3 so I was not sure if I should run the last two commands until the errors were fixed.

Here is the output.

$ uname -a
Linux Roo 4.2.0-35-generic #40~14.04.1-Ubuntu SMP Fri Mar 18 16:37:35 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
stan@Roo:~$ lsb_release -crid
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty
stan@Roo:~$ sudo apt-get update
[sudo] password for stan:
Ign cdrom://Ubuntu 14.04.4 LTS _Trusty Tahr_ - Release amd64 (20160217.1) trusty InRelease
Ign cdrom://Ubuntu 14.04.4 LTS _Trusty Tahr_ - Release amd64 (20160217.1) trusty/main Translation-en_US
Ign cdrom://Ubuntu 14.04.4 LTS _Trusty Tahr_ - Release amd64 (20160217.1) trusty/main Translation-en
Ign cdrom://Ubuntu 14.04.4 LTS _Trusty Tahr_ - Release amd64 (20160217.1) trusty/restricted Translation-en_US
Ign cdrom://Ubuntu 14.04.4 LTS _Trusty Tahr_ - Release amd64 (20160217.1) trusty/restricted Translation-en
Ign http://us.archive.ubuntu.com trusty InRelease
Get:1 http://us.archive.ubuntu.com trusty-updates InRelease [65.9 kB]
Ign http://archive.canonical.com trusty InRelease
Get:2 http://security.ubuntu.com trusty-security InRelease [65.9 kB]
Ign http://ppa.launchpad.net trusty InRelease
Ign http://extras.ubuntu.com trusty InRelease
Hit http://archive.canonical.com trusty Release.gpg
Ign http://ppa.launchpad.net trusty Release.gpg
Ign http://download.videolan.org InRelease
Get:3 http://extras.ubuntu.com trusty Release.gpg [72 B]
Hit http://us.archive.ubuntu.com trusty-backports InRelease
Hit http://archive.canonical.com trusty Release
Ign http://ppa.launchpad.net trusty Release
Hit http://us.archive.ubuntu.com trusty Release.gpg
Hit http://extras.ubuntu.com trusty Release
Hit http://download.videolan.org Release.gpg
Get:4 http://us.archive.ubuntu.com trusty-updates/main Sources [273 kB]
Get:5 http://security.ubuntu.com trusty-security/main Sources [112 kB]
Hit http://extras.ubuntu.com trusty/main Sources
Hit http://archive.canonical.com trusty/partner Sources
Get:6 http://us.archive.ubuntu.com trusty-updates/restricted Sources [5,352 B]
Hit http://archive.canonical.com trusty/partner amd64 Packages
Hit http://extras.ubuntu.com trusty/main amd64 Packages
Get:7 http://us.archive.ubuntu.com trusty-updates/universe Sources [154 kB]
Get:8 http://security.ubuntu.com trusty-security/restricted Sources [4,035 B]
Hit http://archive.canonical.com trusty/partner i386 Packages
Hit http://extras.ubuntu.com trusty/main i386 Packages
Hit http://download.videolan.org Release
Get:9 http://us.archive.ubuntu.com trusty-updates/multiverse Sources [5,928 B]
Get:10 http://security.ubuntu.com trusty-security/universe Sources [35.9 kB]
Hit http://archive.canonical.com trusty/partner Translation-en
Get:11 http://us.archive.ubuntu.com trusty-updates/main amd64 Packages [756 kB]
Get:12 http://security.ubuntu.com trusty-security/multiverse Sources [2,764 B]
Hit http://download.videolan.org Packages
Get:13 http://security.ubuntu.com trusty-security/main amd64 Packages [458 kB]
Ign https://private-ppa.launchpad.net trusty InRelease
Ign https://private-ppa.launchpad.net trusty InRelease
Get:14 http://us.archive.ubuntu.com trusty-updates/restricted amd64 Packages [15.9 kB]
Get:15 http://us.archive.ubuntu.com trusty-updates/universe amd64 Packages [359 kB]
Ign https://private-ppa.launchpad.net trusty InRelease
Hit https://private-ppa.launchpad.net trusty Release.gpg
Hit https://private-ppa.launchpad.net trusty Release.gpg
Get:16 http://us.archive.ubuntu.com trusty-updates/multiverse amd64 Packages [13.2 kB]
Hit https://private-ppa.launchpad.net trusty Release.gpg
Get:17 http://us.archive.ubuntu.com trusty-updates/main i386 Packages [723 kB]
Hit https://private-ppa.launchpad.net trusty Release
Ign http://extras.ubuntu.com trusty/main Translation-en_US
Hit https://private-ppa.launchpad.net trusty Release
Ign http://extras.ubuntu.com trusty/main Translation-en
Hit https://private-ppa.launchpad.net trusty Release
Ign http://download.videolan.org Translation-en_US
Get:18 http://security.ubuntu.com trusty-security/restricted amd64 Packages [13.0 kB]
Hit https://private-ppa.launchpad.net trusty/main amd64 Packages
Get:19 http://security.ubuntu.com trusty-security/universe amd64 Packages [127 kB]
Ign http://download.videolan.org Translation-en
Hit https://private-ppa.launchpad.net trusty/main i386 Packages
Err http://ppa.launchpad.net trusty/main amd64 Packages
  404 Not Found
Err http://ppa.launchpad.net trusty/main i386 Packages
  404 Not Found
Get:20 http://us.archive.ubuntu.com trusty-updates/restricted i386 Packages [15.6 kB]
Ign http://ppa.launchpad.net trusty/main Translation-en_US
Hit https://private-ppa.launchpad.net trusty/main amd64 Packages
Get:21 http://security.ubuntu.com trusty-security/multiverse amd64 Packages [4,982 B]
Get:22 http://us.archive.ubuntu.com trusty-updates/universe i386 Packages [360 kB]
Hit https://private-ppa.launchpad.net trusty/main i386 Packages
Get:23 http://security.ubuntu.com trusty-security/main i386 Packages [433 kB]
Ign http://ppa.launchpad.net trusty/main Translation-en
Hit https://private-ppa.launchpad.net trusty/main amd64 Packages
Get:24 http://us.archive.ubuntu.com trusty-updates/multiverse i386 Packages [13.6 kB]
Get:25 http://us.archive.ubuntu.com trusty-updates/main Translation-en [378 kB]
Hit https://private-ppa.launchpad.net trusty/main i386 Packages
Hit https://private-ppa.launchpad.net trusty/main Translation-en
Get:26 http://us.archive.ubuntu.com trusty-updates/multiverse Translation-en [7,227 B]
Get:27 http://security.ubuntu.com trusty-security/restricted i386 Packages [12.7 kB]
Get:28 http://us.archive.ubuntu.com trusty-updates/restricted Translation-en [3,699 B]
Get:29 http://us.archive.ubuntu.com trusty-updates/universe Translation-en [188 kB]
Get:30 http://security.ubuntu.com trusty-security/universe i386 Packages [127 kB]
Hit http://us.archive.ubuntu.com trusty-backports/main Sources
Hit http://us.archive.ubuntu.com trusty-backports/restricted Sources
Get:31 http://security.ubuntu.com trusty-security/multiverse i386 Packages [5,172 B]
Hit http://us.archive.ubuntu.com trusty-backports/universe Sources
Hit http://us.archive.ubuntu.com trusty-backports/multiverse Sources
Get:32 http://security.ubuntu.com trusty-security/main Translation-en [252 kB]
Hit http://us.archive.ubuntu.com trusty-backports/main amd64 Packages
Hit http://us.archive.ubuntu.com trusty-backports/restricted amd64 Packages
Hit http://us.archive.ubuntu.com trusty-backports/universe amd64 Packages
Hit http://us.archive.ubuntu.com trusty-backports/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com trusty-backports/main i386 Packages
Ign https://private-ppa.launchpad.net trusty/main Translation-en_US
Hit http://us.archive.ubuntu.com trusty-backports/restricted i386 Packages
Hit http://us.archive.ubuntu.com trusty-backports/universe i386 Packages
Ign https://private-ppa.launchpad.net trusty/main Translation-en
Hit http://us.archive.ubuntu.com trusty-backports/multiverse i386 Packages
Hit http://us.archive.ubuntu.com trusty-backports/main Translation-en
Ign https://private-ppa.launchpad.net trusty/main Translation-en_US
Get:33 http://security.ubuntu.com trusty-security/multiverse Translation-en [2,570 B]
Hit http://us.archive.ubuntu.com trusty-backports/multiverse Translation-en
Ign https://private-ppa.launchpad.net trusty/main Translation-en
Get:34 http://security.ubuntu.com trusty-security/restricted Translation-en [3,206 B]
Hit http://us.archive.ubuntu.com trusty-backports/restricted Translation-en
Get:35 http://security.ubuntu.com trusty-security/universe Translation-en [74.9 kB]
Hit http://us.archive.ubuntu.com trusty-backports/universe Translation-en
Hit http://us.archive.ubuntu.com trusty Release
Hit http://us.archive.ubuntu.com trusty/main Sources
Hit http://us.archive.ubuntu.com trusty/restricted Sources
Hit http://us.archive.ubuntu.com trusty/universe Sources
Hit http://us.archive.ubuntu.com trusty/multiverse Sources
Hit http://us.archive.ubuntu.com trusty/main amd64 Packages
Hit http://us.archive.ubuntu.com trusty/restricted amd64 Packages
Hit http://us.archive.ubuntu.com trusty/universe amd64 Packages
Hit http://us.archive.ubuntu.com trusty/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com trusty/main i386 Packages
Hit http://us.archive.ubuntu.com trusty/restricted i386 Packages
Hit http://us.archive.ubuntu.com trusty/universe i386 Packages
Hit http://us.archive.ubuntu.com trusty/multiverse i386 Packages
Hit http://us.archive.ubuntu.com trusty/main Translation-en
Hit http://us.archive.ubuntu.com trusty/multiverse Translation-en
Hit http://us.archive.ubuntu.com trusty/restricted Translation-en
Hit http://us.archive.ubuntu.com trusty/universe Translation-en
Ign http://us.archive.ubuntu.com trusty/main Translation-en_US
Ign http://us.archive.ubuntu.com trusty/multiverse Translation-en_US
Ign http://us.archive.ubuntu.com trusty/restricted Translation-en_US
Ign http://us.archive.ubuntu.com trusty/universe Translation-en_US
Fetched 5,071 kB in 24s (207 kB/s)
W: Failed to fetch http://ppa.launchpad.net/rohityadav/vlmc/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/rohityadav/vlmc/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

Thank you,

1. Your system is already upgraded to Ubuntu 14.04 trusty tahr.

2. You have some references to outdated software sources that have to be removed.

Start the system settings - software & updates dialogue
disable (un-select) the CD-Rom and the rohityadav/vlmc repository.

Then re-try the commands

sudo apt-get update
sudo apt-get dist-upgrade
sudo dpkg --audit

and report the outcome

Sudo dpkg --audit does not work. No out put.

The command "sudo dpkg --audit" is supposed to display packages that are only half-installed or have broken dependencies or some other problem. If the command does not show any output, then this is a positive sign ("no news is good news").

What is the full output of the three commands that I gave in my previous message?

I am sorry. I did not get the commands into the terminal. I followed post #2 and now wish I didn't. I downloaded the ISO and did a fresh install. Everything looks good but the are no additional drivers and no wireless driver. I did some research and found that the drivers are on the cd in a folder called "pool". I clicked on the folder, clicked on the driver file and it opened in the software center program with an install button. But clicking on the button does nothing. There are about 10 applications that can be installed but the install button won't work. I can't find any commands to install these drivers on the disk using the terminal. Can you please help me with this?

Thank you

You have already created another question document for your new problem (Ubuntu 16.04, no cable network available and the WLAN device not working).
I suggest you mark this question document as solved and just keep another one open, e.g. https://answers.launchpad.net/ubuntu/+question/293123 to have all communication about that problem in one document.

Thank you