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Thread: Badsig 40976eaf437d05b5

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  1. #1
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    Badsig 40976eaf437d05b5

    W: GPG error: http://archive.ubuntu.com dapper-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

    Got notified that there were 2 updates (ssh related as far as I remember). After the install, I ran a check for updates on the system and got above message.

    Question is what causes this.

    After writing this, I tried the solution in http://ubuntuforums.org/showthread.php?t=179303 and it still gives the problem.

    So second question is now how to solve it.
    Last edited by Wim Sturkenboom; May 21st, 2008 at 02:24 PM.
    If you don't make backups of your important data, your data is obviously not important to you.

  2. #2
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    Re: Badsig 40976eaf437d05b5

    Time for a little kick.
    If you don't make backups of your important data, your data is obviously not important to you.

  3. #3
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    Re: Badsig 40976eaf437d05b5

    Slightly bigger kick!!!

    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 intrepid-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

    W: Failed to fetch http://security.ubuntu.com/ubuntu/di...curity/Release

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

    Do we have to download new signatures, and is there a process for this?
    Ubuntu LTS - Desktop - Server - Mythbuntu

  4. #4
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    Re: Badsig 40976eaf437d05b5

    If I remember corrrectly, this issue disappeared after the upgrade from Dapper to Hardy that I did in december 2008. And a while ago I noticed that it was back.

    First message
    Apt Authentication issue

    Problem during package list update. The package list update failed with a authentication failure. This usually happens behind a network proxy server. Please try to click on the "Run this action now" button to correct the problem or update the list manually by running Update Manager and clicking on "Check".
    During 'run this action now'
    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 hardy-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>

    W: Failed to fetch http://security.ubuntu.com/ubuntu/di...curity/Release

    W: Some index files failed to download, they have been ignored, or old ones used instead.
    Anybody ?
    If you don't make backups of your important data, your data is obviously not important to you.

  5. #5
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    Thumbs down Re: Badsig 40976eaf437d05b5

    try this

    sudo aptitude -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update


    then test with

    sudo apt-get update

  6. #6
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    Re: Badsig 40976eaf437d05b5

    it worked for me

  7. #7
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    Re: Badsig 40976eaf437d05b5

    Quote Originally Posted by alexfish View Post
    try this

    sudo aptitude -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update
    Alexfish, phantastic!! I have been fiddling with this for ages, read dozens of threads, no solution. Studied 'man aptitude'.
    Where did you get this from??

    And, as a general question, should this eventually been added to the user guidance like 'fix-missing' or similar? What I see here, are two valid, and often needed options; especially in the enterprise, when web-caches and dumb proxies mess up:
    - an option to not use the cache
    - an option to work around broken proxies
    Are there any incarnations as more simple options to be added to apt-get? It might be easier, to suggest the user to type something like
    sudo apt-get --no-cache --fix-proxy update?

    What do you think?

    Uwe

  8. #8
    Join Date
    Nov 2010
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    Re: Badsig 40976eaf437d05b5

    Quote Originally Posted by alexfish View Post
    try this
    sudo aptitude -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update
    stops in middle of list with same error

    Quote Originally Posted by naphtha View Post
    Code:
    sudo rm -r /var/lib/apt/lists
    sudo mkdir -p /var/lib/apt/lists/partial
    sudo aptitude update
    job done, works!
    Thanks both!

  9. #9
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    boston, ma, usa
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    Kubuntu 20.04 Focal Fossa

    Re: Badsig 40976eaf437d05b5

    Just tried this... didn't work
    --aslamK

  10. #10
    Join Date
    Aug 2006
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    86

    Re: Badsig 40976eaf437d05b5

    We just resolved this problem. While the remedies listed didn't work, it turned out the the mirror had an inconsistent set of resources. Specifically the anl ubuntu mirror has most items under http://mirror.anl.gov/pub/ubuntu/, the lucid-updates is under http://mirror.anl.gov/ubuntu/, even thought there was another, older lucid-updates in http://mirror.anl.gov/pub/ubuntu/

    So, when all else fails, look really carefully at sources.list and at the mirror.

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