1

After installing Xubuntu/Xfce desktop environments in my Ubuntu 14.04 64bit installation, I now get a list of missing Public Keys and errors when running an update.

I noticed in Synaptic Package Manage ALL the ubuntu keys are missing. In the list there is no software that has a Public Key.

The same issue whether I login the Unity or Xubuntu environments

pst007x@pst007x-Serval-Professional:~$ lsb_release -a
LSB Version:    core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch:core-4.1-amd64:core-4.1-noarch:security-4.0-amd64:security-4.0-noarch:security-4.1-amd64:security-4.1-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:    14.04
Codename:   trusty

I do not think this is duplicated because none of the solutions have worked here and I ahve ALL keys missing?

Err http://gb.archive.ubuntu.com trusty/main i386 Packages                     
  404  Not Found [IP: 91.189.92.201 80]
Fetched 52.4 MB in 1min 16s (689 kB/s)                                         
W: GPG error: http://download.mono-project.com wheezy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A6A19B38D3D831EF
W: GPG error: http://deb.opera.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 517590D9A8492E35
W: GPG error: http://download.mono-project.com wheezy-apache24-compat InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A6A19B38D3D831EF
W: GPG error: http://archive.canonical.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://extras.ubuntu.com trusty Release: Unknown error executing gpgv
W: GPG error: http://deb.opera.com stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 517590D9A8492E35
W: GPG error: http://gb.archive.ubuntu.com trusty Release: Unknown error executing gpgv
W: GPG error: http://repo.vivaldi.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY CEC384A8BF1700F8
W: GPG error: http://gb.archive.ubuntu.com trusty-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://archive.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://gb.archive.ubuntu.com trusty-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://security.ubuntu.com trusty-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: GPG error: http://linux.dropbox.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FC918B335044912E
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: GPG error: https://private-ppa.launchpad.net oneiric Release: Unknown error executing gpgv
W: GPG error: https://private-ppa.launchpad.net trusty Release: Unknown error executing gpgv
W: GPG error: https://private-ppa.launchpad.net quantal Release: Unknown error executing gpgv
W: GPG error: https://private-ppa.launchpad.net trusty Release: Unknown error executing gpgv
W: GPG error: https://private-ppa.launchpad.net quantal Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net quantal Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net raring Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net raring Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: https://private-ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A9A06AEF9CB8DB0
W: GPG error: http://ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A9A06AEF9CB8DB0
W: GPG error: http://ppa.launchpad.net trusty Release: Unknown error executing gpgv
W: GPG error: http://ppa.launchpad.net trusty Release: Unknown error executing gpgv
W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7274A4DAE80D6BF5
W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A80C8DFE23A187B2
W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 241FE6973B765FAE
W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5AF549300FEB6DD9
W: Size of file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty_universe_i18n_Translation-en is not what the server reported 4089144 5062829
W: Size of file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty_universe_i18n_Translation-en is not what the server reported 5062829 10874183
W: Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/trusty/main/binary-i386/Packages  404  Not Found [IP: 91.189.92.201 80]

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

I have tried:

using the FIX features in Y PPA Manager

also this

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 3B4FE6ACC0B21F32 16126D3A3E5C1192 3B4FE6ACC0B21F32 517590D9A8492E35 A6A19B38D3D831EF CEC384A8BF1700F8 A040830F7FAC5991 FC918B335044912E E131728675254D99 40C18E9EC07EE05F 7274A4DAE80D6BF5
A80C8DFE23A187B2

This is then the result:

pst007x@pst007x-Serval-Professional:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 3B4FE6ACC0B21F32 16126D3A3E5C1192 3B4FE6ACC0B21F32 517590D9A8492E35 A6A19B38D3D831EF CEC384A8BF1700F8 A040830F7FAC5991 FC918B335044912E E131728675254D99 40C18E9EC07EE05F 7274A4DAE80D6BF5
[sudo] password for pst007x: 
Sorry, try again.
[sudo] password for pst007x: 
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.pGzLVgkAbN --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d/atareao-atareao.gpg --keyring /etc/apt/trusted.gpg.d/diesch-testing.gpg --keyring /etc/apt/trusted.gpg.d/ferramroberto-minitube.gpg --keyring /etc/apt/trusted.gpg.d/fossfreedom-rhythmbox-plugins.gpg --keyring /etc/apt/trusted.gpg.d/libreoffice-ppa.gpg --keyring /etc/apt/trusted.gpg.d/linrunner-tlp.gpg --keyring /etc/apt/trusted.gpg.d/mc3man-trusty-media.gpg --keyring /etc/apt/trusted.gpg.d/menulibre-dev-devel.gpg --keyring /etc/apt/trusted.gpg.d/minecraft-installer-peeps-minecraft-installer.gpg --keyring /etc/apt/trusted.gpg.d/moka-stable.gpg --keyring /etc/apt/trusted.gpg.d/myunity-ppa.gpg --keyring /etc/apt/trusted.gpg.d/nilarimogard-webupd8.gpg --keyring /etc/apt/trusted.gpg.d/nitrux-nitrux-artwork.gpg --keyring /etc/apt/trusted.gpg.d/nitrux-team-nitrux-artwork.gpg --keyring /etc/apt/trusted.gpg.d/noobslab-apps.gpg --keyring /etc/apt/trusted.gpg.d/noobslab-icons.gpg --keyring /etc/apt/trusted.gpg.d/noobslab-potenza.gpg --keyring /etc/apt/trusted.gpg.d/noobslab-themes.gpg --keyring /etc/apt/trusted.gpg.d/numix-ppa.gpg --keyring /etc/apt/trusted.gpg.d/otto-kesselgulasch-gimp.gpg --keyring /etc/apt/trusted.gpg.d/pinta-maintainers-pinta-stable.gpg --keyring /etc/apt/trusted.gpg.d/pipelight-stable.gpg --keyring /etc/apt/trusted.gpg.d/ryochan7-antimicro.gpg --keyring /etc/apt/trusted.gpg.d/shimmerproject-ppa.gpg --keyring /etc/apt/trusted.gpg.d/synapse-core-testing.gpg --keyring /etc/apt/trusted.gpg.d/team-xbmc-ppa.gpg --keyring /etc/apt/trusted.gpg.d/team-xbmc-xbmc-nightly.gpg --keyring /etc/apt/trusted.gpg.d/thebernmeister-ppa.gpg --keyring /etc/apt/trusted.gpg.d/thefanclub-ubuntu-after-install.gpg --keyring /etc/apt/trusted.gpg.d/tiheum-equinox.gpg --keyring /etc/apt/trusted.gpg.d/ubuntu-mozilla-daily-ppa.gpg --keyring /etc/apt/trusted.gpg.d/wallch-wallch-4_0.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-gthumb.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-java.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-themes.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-y-ppa-manager.gpg --keyring /etc/apt/trusted.gpg.d/wfg-0ad.gpg --keyring /etc/apt/trusted.gpg.d/xorg-edgers-ppa.gpg --keyring /etc/apt/trusted.gpg.d/xubuntu-dev-extras.gpg --keyring /etc/apt/trusted.gpg.d/xubuntu-dev-xfce-4_12.gpg --keyring /etc/apt/trusted.gpg.d/yorba-daily-builds.gpg --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 3B4FE6ACC0B21F32 16126D3A3E5C1192 3B4FE6ACC0B21F32 517590D9A8492E35 A6A19B38D3D831EF CEC384A8BF1700F8 A040830F7FAC5991 FC918B335044912E E131728675254D99 40C18E9EC07EE05F 7274A4DAE80D6BF5
gpg: keyblock resource `/etc/apt/trusted.gpg.d/xubuntu-dev-extras.gpg': resource limit
gpg: keyblock resource `/etc/apt/trusted.gpg.d/xubuntu-dev-xfce-4_12.gpg': resource limit
gpg: keyblock resource `/etc/apt/trusted.gpg.d/yorba-daily-builds.gpg': resource limit
gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: requesting key C0B21F32 from hkp server keyserver.ubuntu.com
gpg: requesting key 3E5C1192 from hkp server keyserver.ubuntu.com
gpg: requesting key C0B21F32 from hkp server keyserver.ubuntu.com
gpg: requesting key A8492E35 from hkp server keyserver.ubuntu.com
gpg: requesting key D3D831EF from hkp server keyserver.ubuntu.com
gpg: requesting key BF1700F8 from hkp server keyserver.ubuntu.com
gpg: requesting key 7FAC5991 from hkp server keyserver.ubuntu.com
gpg: requesting key 5044912E from hkp server keyserver.ubuntu.com
gpg: requesting key 75254D99 from hkp server keyserver.ubuntu.com
gpg: requesting key C07EE05F from hkp server keyserver.ubuntu.com
gpg: requesting key E80D6BF5 from hkp server keyserver.ubuntu.com
gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed
gpg: key C0B21F32: "Ubuntu Archive Automatic Signing Key (2012) <ftpmaster@ubuntu.com>" not changed
gpg: key 3E5C1192: "Ubuntu Extras Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed
gpgkeys: key CEC384A8BF1700F8 not found on keyserver
gpg: key C0B21F32: "Ubuntu Archive Automatic Signing Key (2012) <ftpmaster@ubuntu.com>" not changed
gpg: key A8492E35: "Opera Software Archive Automatic Signing Key 2013b <packager@opera.com>" not changed
gpg: key D3D831EF: "Xamarin Public Jenkins (auto-signing) <releng@xamarin.com>" not changed
gpg: key 7FAC5991: "Google, Inc. Linux Package Signing Key <linux-packages-keymaster@google.com>" not changed
gpg: key 5044912E: "Dropbox Automatic Signing Key <linux@dropbox.com>" not changed
gpg: key 75254D99: "Launchpad test" not changed
gpg: key C07EE05F: "Launchpad PPA for Pascal de Bruijn" not changed
gpg: key E80D6BF5: "Launchpad cairo-dock" not changed
gpg: Total number processed: 11
gpg:              unchanged: 11

also this

sudo apt-get update | grep "NO_PUBKEY" | awk '{ system("addgpg-apt "$21) }'

I have tried to restore default keys using Software & Updates utility, then trying all of the above again, but still the same issue... All keys have gone.

Still the same issue... Any ideas would be appreciated..

Thanks

  • I also have this problem on a completely fresh vanilla install of Xubuntu 15.10 – wool.in.silver Feb 25 '16 at 10:39
5

You might be affected by this bug. If it is so, you can fix the problem easily by going to /etc/apt/trusted.gpg.d/ and removing unused keys (e.g. keys for old PPAs that you have since deleted).

The bug occurs if there are more than 40 keys (*.gpg) in /etc/apt/trusted.gpg.d/.

  • 3
    I deleted all contents in this folder and run { sudo launchpad-getkeys } then { sudo apt-get update } .... this cleared the fault. Appreciated! – pst007x Apr 12 '15 at 2:19
  • Also worked for me on Ubuntu 14.04.2 LTS. Was wondering what's going on. Thank you very much. – 1111161171159459134 May 3 '15 at 13:21

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.