Certificate verification failed: The certificate is NOT trusted

Hi There,

I set proxy in /etc/apt/apt.conf, and encounter below error when “sudo apt-get update”, can anyone help, thanks!

$ sudo apt-get update
Ign:1 https://repo.download.nvidia.com/jetson/common r32.5 InRelease
Ign:2 https://repo.download.nvidia.com/jetson/t194 r32.5 InRelease
Err:3 https://repo.download.nvidia.com/jetson/common r32.5 Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate. Could not handshake: Error in the certificate verification. [IP: 10.239.120.55 913]
Err:5 https://repo.download.nvidia.com/jetson/t194 r32.5 Release
Certificate verification failed: The certificate is NOT trusted. The certificate chain uses not yet valid certificate. Could not handshake: Error in the certificate verification. [IP: 10.239.120.55 913]
Get:6 Index of /ubuntu-ports bionic-updates InRelease [88.7 kB]
Get:7 Index of /ubuntu-ports bionic-backports InRelease [74.6 kB]
Get:8 Index of /ubuntu-ports bionic-security InRelease [88.7 kB]
Get:4 Index of /ubuntu-ports bionic InRelease [242 kB]
Reading package lists… Done
E: The repository ‘https://repo.download.nvidia.com/jetson/common r32.5 Release’ does not have a Release file.
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.
E: The repository ‘https://repo.download.nvidia.com/jetson/t194 r32.5 Release’ does not have a Release file.
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.
E: Release file for http://ports.ubuntu.com/ubuntu-ports/dists/bionic-updates/InRelease is not valid yet (invalid for another 1600d 12h 56min 13s). Updates for this repository will not be applied.
E: Release file for http://ports.ubuntu.com/ubuntu-ports/dists/bionic-backports/InRelease is not valid yet (invalid for another 1600d 12h 57min 49s). Updates for this repository will not be applied.
E: Release file for http://ports.ubuntu.com/ubuntu-ports/dists/bionic-security/InRelease is not valid yet (invalid for another 1600d 12h 54min 52s). Updates for this repository will not be applied.
E: Release file for http://ports.ubuntu.com/ubuntu-ports/dists/bionic/InRelease is not valid yet (invalid for another 88d 7h 18min 9s). Updates for this repository will not be applied.

Hi,
Could you reset /etc/apt/apt.conf to default and give it a try? You should not need to touch the file. The default one should work fine.

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