Peter, Thanks for the response that did the trick and got the system updated fully. Thanks, John Csuti +1 (216) 633-1279 On 2021-10-11 03:41 AM, Peter Gerber wrote:

Hi,

unfortunately, there is some software that wasn't well prepared for the expiration of the Let's Encrypt root certificate [1 [1]]. Ubuntu ships a fix/workaround [2 [2]] for the issue. Just update Ubuntu first, then try to update Tor again.

Peter

[1]: https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/ [2]: https://changelogs.ubuntu.com/changelogs/pool/main/c/ca-certificates/ca-cert...

John Csuti via tor-relays:

...

Hello all,

I recently went to update and upgrade my system and found that the certificate for deb.torproject.org is expired and no longer trusted? Is anyone else having this issue and is there a way to fix this. I also added the repo to a fresh install of ubuntu 20.04 and got the same error.

Error Err:5 https://deb.torproject.org/torproject.org 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: 95.216.163.36 443]

Thanks, John Csuti +1 (216) 633-1279

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Links: ------ [1] https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/ [2] https://changelogs.ubuntu.com/changelogs/pool/main/c/ca-certificates/ca-cert...