Hi

If you do not have LTSS for SLES 12 SP4, you will need to manually
remove the CA from the trust store.

- ll /usr/share/pki/trust/DST*
- Remove the DST_Root_CA_X3... if present
- Run update-ca-certificates

We have a lot of SLES subscriptions, we are part of the partner program. 
I will need to change the automated installation of the OS for our tests.

Thanks.
Regards.
Mathias