Just installed Ubuntu...cannot download updates...

[ufo8mymunky]

Ok...so I guess I don't really know what I am doing but I'm not retarded to the point where I can't figure out how to download updates...I click on the update manager and 200 + updates are available, I click on the install updates button and enter my password....then another window pops up saying that it is going to install the updates and all the sudden I get an error message saying

Requires installation of untrusted packages

The action would require the installation of packages from not authenticated sources.

Details>
lzma


How do I fix this?

[hazel]

It may just be that your keys are out of date. Open a terminal and type apt-get update. Then try again.

[ufo8mymunky]

It may just be that your keys are out of date. Open a terminal and type apt-get update. Then try again.

Ok...I did that and this is what it said


pcofdoom@pcofdoom-Satellite-C655D:~$ apt-get update
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?


??

[Rubberman]

This has to run as root - try "sudo apt-get update"

[ufo8mymunky]

Ok...I added sudo and it asked for sudo password and it wouldn't let me type anything

[Rubberman]

The password will be invisible, and it should be your password, the one you login with.

[ufo8mymunky]

Ok....bunch of updates showed up...the forum wont let me post it but the end result is this:

Fetched 913 kB in 10s (91.2 kB/s)
Reading package lists... Done


So will I have to do this every time I need updates, and I'm guessing that this wasn't all 271 updates that were available....

[ufo8mymunky]

Nevermind...Update manager is working now....Thank you for the help!

[hazel]

When you do sudo apt-get update, you're updating your keys and getting info on new and upgraded packages in the repository. You're not updating the packages themselves. That has to be done separately, either by the update manager or by yourself using synaptic or apt-get upgrade.

If you use synaptic, the graphical front-end for apt, you can press the reload button to do the work of apt-get update. You always need to do an update before upgrading packages.

[ufo8mymunky]

Thank you. I did not know that.