# Raco pkg install error: certificate verify failed
**URL:** https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717
**Category:** Questions & Answers
**Created:** [February 12, 2024, 4:16pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717 "2024-02-12T16:16:23Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Axel](https://racket.discourse.group/u/Axel)
#### Post date: [February 12, 2024, 4:16pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/1 "2024-02-12T16:16:23Z")
Hello, thank for the new version of Racket. I just managed to compile
this new version and encountered a problem as I tried to install some
packages via the package manager in drracket but that attempt failed.
Than I tried to solve the problem by using raco manually in the
commandline. The result was the same. The installation of the package
failed:
axel@axels-tux2:~/racket-8.12/bin$ ./raco pkg install scribble-math
Resolving "scribble-math" via [https://pkgs.racket-lang.org](https://pkgs.racket-lang.org)
ssl-connect: connect failed (error:1416F086:SSL
routines:tls\_process\_server\_certificate:certificate verify failed)
Than I tried this with racket-8.11 and racket-8.9 with the same result.
Even an upgrade of the catalog was impossible due to the inability of
the racket-installation to verify the tls\_process\_server\_certificate. I
am not a professional programmer but an enthusiastic user who happens to
like this variant of scheme but none the less I need a working
racket-installation so I need some help to fix this problem.
Thanks in advance for any helpful advice.
PS: I am working with Kubuntu - 20.04
---
### Author:  [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)
#### Post date: [February 12, 2024, 5:22pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/2 "2024-02-12T17:22:10Z")
Hi @Axel
Can you confirm you can get to [https://pkgs.racket-lang.org/](https://pkgs.racket-lang.org/) in the browser
Does it give any certificate errors?
Stephen
---
### Author:  [@Axel](https://racket.discourse.group/u/Axel)
#### Post date: [February 12, 2024, 8:07pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/3 "2024-02-12T20:07:26Z")
Hi @Stephen,
Thank you for your answer. I have no problems getting to the packages
website [https://pkgs.racket-lang.org/](https://pkgs.racket-lang.org/). Everything's fine with the
certificate.
---
### Author:  [@samth](https://racket.discourse.group/u/samth)
#### Post date: [February 12, 2024, 8:26pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/4 "2024-02-12T20:26:45Z")
Generally this problem happens because you have an out-of-data set of root certificates on your system. Probably there are relevant updates for this.
---
### Author:  [@Axel](https://racket.discourse.group/u/Axel)
#### Post date: [February 12, 2024, 10:15pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/5 "2024-02-12T22:15:22Z")
How can I update the data set of root certificates? Meanwhile I discovered this problem with all my Racket-Installations on my laptop (I have installed racket 8.9, 8.11 and now 8.12). They all are home built and installed with prefix $HOME/racket-8.XX. Until now this problem only exists with racket-lang. I don't work with superuser rights because I am not so good in system administration. I hope there is no need for me install a complete new operating system on my laptop.
Thank you for your help so far.
---
### Author:  [@soegaard](https://racket.discourse.group/u/soegaard)
#### Post date: [February 12, 2024, 10:52pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/6 "2024-02-12T22:52:16Z")
> [@Axel](#):
>
> sl-connect: connect failed (error:1416F086:SSL
> routines:tls\_process\_server\_certificate:certificate verify failed
I think, you can update the certificates with `update-ca-certificates` but
look around for info first.
[https://www.cyberciti.biz/faq/update-ca-certificates-command-examples-in-linux-to-ssl-ca-certificates/](https://www.cyberciti.biz/faq/update-ca-certificates-command-examples-in-linux-to-ssl-ca-certificates/)
---
### Author:  [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)
#### Post date: [February 12, 2024, 10:56pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/7 "2024-02-12T22:56:35Z")
Hi @Axel
The Kubuntu community forum [Community | Kubuntu](https://kubuntu.org/community/) should be able to help with updating certificates on Kubuntu 20.04
I did find the following page - but I am no expert so it is probably better to ask the community familiar with Kubuntu 20.04
at [Release Kubuntu Manual 20.04 LTS · kubuntu-team/kubuntu-manual · GitHub](https://github.com/kubuntu-team/kubuntu-manual/releases/tag/v1.0.0)
via [Help and Support | Kubuntu](https://kubuntu.org/support/)
---
### Author:  [@Axel](https://racket.discourse.group/u/Axel)
#### Post date: [February 14, 2024, 10:08pm UTC](https://racket.discourse.group/t/raco-pkg-install-error-certificate-verify-failed/2717/8 "2024-02-14T22:08:20Z")
Hi @Jens Axel Søgaard,hi @Stephen De Gabrielle!
Thanks for your thoughts concerning my little problem with racket's ssl
certificate verifications. Through your hints I got a clue where to
search for the reason. I found it and was than able to solve the problem.
Racket now runs with all versions including 8.12! And so far I am quite
happy with 8.12.