During Update get "Failed to fetch"

[Ralph L]

I am running Ubuntu 12.04.2 LTS. When I tried to perform a routine update, I got:

Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/a/apt/libapt-pkg4.12_0.8.16~exp12ubuntu10.11_i386.deb 404 Not Found [IP: 91.189.91.15 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/a/apt/apt_0.8.16~exp12ubuntu10.11_i386.deb 404 Not Found [IP: 91.189.91.15 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/a/apt/libapt-inst1.4_0.8.16~exp12ubuntu10.11_i386.deb 404 Not Found [IP: 91.189.91.15 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/a/apt/apt-utils_0.8.16~exp12ubuntu10.11_i386.deb 404 Not Found [IP: 91.189.91.15 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/a/apt/apt-transport-https_0.8.16~exp12ubuntu10.11_i386.deb 404 Not Found [IP: 91.189.91.15 80]

I tried several times and always got the same message. Can anybody tell me what to do????

[Old_Grey_Wolf]

Did you do sudo apt-get update before doing sudo apt-get upgrade? Those packages have been replaced by newer versions on that server.

[Ralph L]

Old Gray Wolf

Thank you very much for responding. However, I do have a question. I don't understand the apt-get upgrade command. I don't want to upgrade to a newer version of Ubuntu (like Raring). I want to continue using the 12.04 LTS version. If I run apt-get upgrade will I be upgraded to a new version (as would be done in Update Manager), or will I just get the latest version of 12.04 LTS. I am a little afraid to run the apt-get upgrade command.

[QIII]

Hello!

There is a lot of confusion around this: upgrade and dist-upgrade do not change your version.

They upgrade the packages in the context of your current version.

The update command does not do anything to actually change your applications/packages. It only updates the list of what is available for upgrade. To get new packages, you have to run upgrade or dist-upgrade.

The command that you don't want to do is do-release-upgrade -- which is what you could use to upgrade you to a new version of Ubuntu.

Best wishes!

[Bashing-om]

Ralph L; Hey ,
Allow me to intercede.

"apt-get upgrade" only updates installed packages as existing on the current install.
To see the relevant info; do in terminal:


man apt-get

Do:


sudo apt-get update ##syncs the system data base with the repository
sudo apt-get upgrade ##updates installed packages

In the event you have "old" software sources repositories enabled ... got some work cut out for us to get all squared away.
On a production server, General advise is to be aware of what is being updated !



ain't nothing but a thing

[Ralph L]

Thanks everybody. The apt-get update did the trick. The I ran Update Manager from the main menu. Everything worked. And thanks for the explanation of apt-get upgrade. I wasn't sure about it even after I read the man page.