Update/Upgrade fails.

[ChristopherAdams]

I've been having problems getting Ubuntu to update & upgrade on an Acer Aspire. I will get messages about the number of updates I'm missing, but when I try to run 'sudo apt-get update' the process fails.

I tried the following command, as suggested in another thread:

sudo rm -vf /var/lib/apt/lists/partial/* This removed a bunch of files, but the OS still won't upgrade.

Here are the error messages I get from running "apt-get update --fix missing":

"W: GPG error: http://us.archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5
Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.
GPG error: http://us.archive.ubuntu.com precise-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5
Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.
GPG error: http://security.ubuntu.com precise-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5
Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/...pdates/Release (http://us.archive.ubuntu.com/ubuntu/dists/precise-updates/Release)

W: Failed to fetch http://security.ubuntu.com/ubuntu/di...curity/Release (http://security.ubuntu.com/ubuntu/dists/precise-security/Release)

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

Any help would be appreciated.
-Christopher Adams.

[ajgreeny]

You should be able to solve your problem by following the information at https://wiki.ubuntu.com/GPGArchiveSignature

[jerrrys]

Also check here

http://www.googlubuntu.com/results/?cx=006238239194895611142%3Au-ocqbntw_o&cof=FORID%3A9&ie=UTF-8&q=GPG+error+BADSIG+&as_qdr=all&sa=Google+Search&lang=en

[ChristopherAdams]

I used the first method outlined in the link provided by jerrrys, and that solved the problem.

Thanks jerrrys & ajgreeny! :P

Christopher Adams.

:guitar:\\:D/=D>=D>=D>\\:D/