Here is the error (note: it is happening with the TBB repository as well:
root@fc9c5f2a3649:/# apt-get update
Hit:1 <a href="http://security.ubuntu.com/ubuntu" target="_blank">http://security.ubuntu.com/ubuntu</a> bionic-security InRelease
Get:2 <a href="https://apt.repos.intel.com/mkl" target="_blank">https://apt.repos.intel.com/mkl</a> all InRelease [4430 B]
Hit:3 <a href="http://archive.ubuntu.com/ubuntu" target="_blank">http://archive.ubuntu.com/ubuntu</a> bionic InRelease
Err:2 <a href="https://apt.repos.intel.com/mkl" target="_blank">https://apt.repos.intel.com/mkl</a> all InRelease
The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation
Hit:4 <a href="http://archive.ubuntu.com/ubuntu" target="_blank">http://archive.ubuntu.com/ubuntu</a> bionic-updates InRelease
Hit:5 <a href="http://archive.ubuntu.com/ubuntu" target="_blank">http://archive.ubuntu.com/ubuntu</a> bionic-backports InRelease
Reading package lists... Done
W: GPG error: <a href="https://apt.repos.intel.com/mkl" target="_blank">https://apt.repos.intel.com/mkl</a> all InRelease: The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation
E: The repository 'https://apt.repos.intel.com/mkl all InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Same issue. It looks like the key expired today. Not much we can do until Intel provides an updated key.
I tried to simply grab the `-2020.pub` key but it doesn’t exist.
gpg GPG-PUB-KEY-INTEL-SW-PRODUCTS-2019.pub
gpg: WARNING: no command supplied. Trying to guess what you mean ...
pub rsa2048 2016-09-28 [SC] [expired: 2019-09-27]
BF4385F91CA5FC005AB39E1C1A8497B11911E097
uid "CN = Intel(R) Software Development Products", O=Intel Corporation
I’m running into the same problem trying to install MKL. Is there a workaround we can use while this is getting fixed?
wget <a href="https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2019.PUB" target="_blank">https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2019.PUB</a>
sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS-2019.PUB
sudo sh -c 'echo deb <a href="https://apt.repos.intel.com/ipp" target="_blank">https://apt.repos.intel.com/ipp</a> all main > /etc/apt/sources.list.d/intel-ipp.list'
sudo apt-get update
Err:12 <a href="https://apt.repos.intel.com/ipp" target="_blank">https://apt.repos.intel.com/ipp</a> all InRelease
The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation
Reading package lists...
W: GPG error: <a href="https://apt.repos.intel.com/ipp" target="_blank">https://apt.repos.intel.com/ipp</a> all InRelease: The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation
E: The repository 'https://apt.repos.intel.com/ipp all InRelease' is not signed.
W: GPG error: <a href="https://apt.repos.intel.com/ipp" target="_blank">https://apt.repos.intel.com/ipp</a> all InRelease: The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation
I see this problem too, today, setting up a new machine.
W: GPG error: https://apt.repos.intel.com/mkl all InRelease: The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 “CN = Intel(R) Software Development Products”, O=Intel Corporation
I’m running into the same problem trying to install MKL. Is there a workaround we can use while this is getting fixed?
Yes, but it involves disabling certain security checks. Better wait out till Monday. This should be fixed very quickly (I am not speaking for Intel, just reasoning the breakage is too extensive).
You can google for ‘disable apt deb gpg security checks’ or something, but I strongly advise against.
Actually, I see two errors - the MKL repo is missing the public key, and the TBB repo’s key is expired.
W: GPG error: <a href="https://apt.repos.intel.com/mkl" target="_blank">https://apt.repos.intel.com/mkl</a> all InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository 'https://apt.repos.intel.com/mkl all InRelease' is not signed.
W: GPG error: <a href="https://apt.repos.intel.com/tbb" target="_blank">https://apt.repos.intel.com/tbb</a> all InRelease: The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation
E: The repository 'https://apt.repos.intel.com/tbb all InRelease' is not signed.
Err:4 https://apt.repos.intel.com/intelpython binary/ InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
Err:5 https://apt.repos.intel.com/mkl all InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
Err:7 https://apt.repos.intel.com/ipp all InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
Err:8 https://apt.repos.intel.com/tbb all InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
Err:10 https://apt.repos.intel.com/daal all InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
Err:11 https://apt.repos.intel.com/mpi all InRelease
The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
Reading package lists… Done
W: GPG error: https://apt.repos.intel.com/intelpython binary/ InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository ‘https://apt.repos.intel.com/intelpython binary/ InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: https://apt.repos.intel.com/mkl all InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository ‘https://apt.repos.intel.com/mkl all InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: https://apt.repos.intel.com/ipp all InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository ‘https://apt.repos.intel.com/ipp all InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: https://apt.repos.intel.com/tbb all InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository ‘https://apt.repos.intel.com/tbb all InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: https://apt.repos.intel.com/daal all InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository ‘https://apt.repos.intel.com/daal all InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: https://apt.repos.intel.com/mpi all InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY ACFA9FC57E6C5DBE
E: The repository ‘https://apt.repos.intel.com/mpi all InRelease’ is not signed.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
extras/install_mkl.sh: MKL package intel-mkl-64bit-2019.2-057 installation FAILED.