GPG ERROR NO_PUBKEY : WARNING: The following packages cannot be authenticated!
61,809
Run command:
sudo apt-get update
For every 16-character key that is reported as missing, run the following with the key substituted:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ABCDEFGH12345678
Author by
Patryk
Software Engineer C++/Go/shell/python coder Linux enthusiast Github profiles: https://github.com/pmalek https://github.com/pmalekn
Updated on September 18, 2022Comments
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Patryk over 1 year
I have just stared to receive some strange errors regarding GPG keys. Namely I have just added
ppa:ubuntu-toolchain-r/test
and wanted to update and after that I got this:W: GPG error: http://extras.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192 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://qgis.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 030561BEDD45F6C3 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://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://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-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
I have tried to resolved it in 2 ways (provided here)
for key in 40976EAF437D05B5 3B4FE6ACC0B21F32 A040830F7FAC5991 030561BEDD45F6C3 16126D3A3E5C1192 ; do sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys $key ; done
but that didn't help (the same errors kept coming with the same keys) so I have tried to do this :
sudo add-apt-repository ppa:webupd8team/y-ppa-manager sudo apt-get update sudo apt-get install y-ppa-manager
but I got this which opened my eyes:
Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: launchpad-getkeys libvte-common libvte9 python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri python-oauth python-secretstorage python-simplejson python-vte python-wadllib xclip yad Suggested packages: python-gdata python-keyczar python-kde4 python-testresources python-secretstorage-doc The following NEW packages will be installed: launchpad-getkeys libvte-common libvte9 python-keyring python-launchpadlib python-lazr.restfulclient python-lazr.uri python-oauth python-secretstorage python-simplejson python-vte python-wadllib xclip y-ppa-manager yad 0 upgraded, 15 newly installed, 0 to remove and 29 not upgraded. Need to get 915 kB of archives. After this operation, 4,515 kB of additional disk space will be used. Do you want to continue? [Y/n] Y WARNING: The following packages cannot be authenticated! libvte-common libvte9 python-keyring python-lazr.uri python-simplejson python-wadllib python-oauth python-lazr.restfulclient python-launchpadlib python-secretstorage python-vte xclip Install these packages without verification? [y/N]
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g_p over 9 yearstry
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <KEY>
. For examplesudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
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Patryk over 9 yearsI tried and this didn't work at that point. Check my answer.
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Panther over 9 yearsThis is essentially a bug report where you describe a problem and as an answer you refer to the bug report. The bug report itself is for 13.10 which is beyond end of life. If you are on 13.10 I suggest you upgrade. If you are on a current version of Ubuntu I suggest you file a new bug report as the old one is out dated. reference the old one in the new.
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Eliah Kagan over 9 yearspossible duplicate of How do I fix the GPG error "NO_PUBKEY"?
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bain over 8 years
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becko over 9 yearsI get the following errors:
gpgkeys: key 1DB8ADC1CFCA9579 can't be retrieved
.gpg: no valid OpenPGP data found.
What can I do? -
harayz about 9 yearswhat if there were no missing keys reported on apt-get update?