This is a long winded question so bear with me!
I am trying to upgrade my 12.10 Quental Ubuntu to the 14.04 version. This has led to a problem within my system not being able to update. For information, this build of Ubuntu does a dual-boot with my Windows 7 package.
I initially tried to find the update manager on my system which has dissapeared. I then searched on Google and came to this page:
How to upgrade from Ubuntu 12.10 to 14.04
When typing in sudo apt-get update, it hits 18% and says, "Waiting for headers."
A couple of errors occur. The last two lines of the error log state:
"W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/raring/multiverse/binary-amd64/Packages 404 Not Found [IP: 91.189.91.13 80]
E: Some index files failed to download. They have been ignored, or old ones used instead."
I have checked online and found this page in answer to this problem:
How can I fix a 404 Error when using a PPA or updating my package lists?
During the main answer it suggests to type these three lines into the command line:
sudo add-apt-repository ppa:fossfreedom/packagefixes
sudo apt-get update
sudo apt-get install banish404
After I run sudo banish404, I still get the same error message.
My final aim is to just update Ubuntu to 14.04 in my Dual boot machine. My fear is if I download an ISO and try to run it from booting my machine, it will either wipe everything, (and there is a lot of stuff within my Windows account!) or provide a triple boot scenario whereby I choose between Windows, Ubuntu 12.10 and Ubuntu 14.04.
My experience is very limited with Linux and the command line, (did a short course a couple of years ago with my uni.) Although it has increased a lot in the last two days, (I have created to a Kali Linux virtual machine and a SIFT forensics virtual machine, both in virtual box on my windows account.)
Any help?