Certificates untrusted on fresh install

For testing, I just installed a copy of Zorin OS 16 Core - bare metal.
After logging in, I opened terminal and ran sudo apt update (as this is the first thing all users should do immediately after installing Zorin OS).
I was greeted with

  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate.  Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Hit:9 http://ppa.launchpad.net/zorinos/patches/ubuntu focal InRelease          
Err:10 https://packages.zorinos.com/patches focal Release                      
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate.  Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Err:11 https://packages.zorinos.com/apps focal Release                         
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate.  Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Hit:12 http://ppa.launchpad.net/zorinos/stable/ubuntu focal InRelease          
Err:13 https://packages.zorinos.com/drivers focal Release                      
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate.  Could not handshake: Error in the certificate verification. [IP: 138.68.36.163 443]
Hit:14 http://us.archive.ubuntu.com/ubuntu focal InRelease  

I ran sudo apt install --reinstall ca-certificates which cleared that up.

But this may affect many users and they may not know what to do.

2 Likes

I've never actually encountered this on any of the times I installed Zorin, so it's strange to see this error show seeing that all of these repositories are legit and trusted.

It may be because the build .iso I used was Zorin OS 16.1