# Photonix installation fails

**URL:** <https://forum.yunohost.org/t/photonix-installation-fails/17581>\
**Category:** Support apps\
**Tags:** photonix, english\
**Created:** [October 25, 2021, 2:42am UTC](https://forum.yunohost.org/t/photonix-installation-fails/17581 "2021-10-25T02:42:05Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![MarBris](https://forum.yunohost.org/letter_avatar_proxy/v4/letter/m/d26b3c/32.png) [@MarBris](https://forum.yunohost.org/u/MarBris)\
**Post date:** [October 25, 2021, 7:46pm UTC](https://forum.yunohost.org/t/photonix-installation-fails/17581/3 "2021-10-25T19:46:46Z")

</div>

Thank you for your reply. I tried installing it again and got the same problem and the output looks identical. Nonetheless, here is the new output: [https://paste.yunohost.org/raw/puyuzigale](https://paste.yunohost.org/raw/puyuzigale)

`grep -nr 'debian.org' /etc/apt/sources.list*`

Doesn’t output anything. The file `/etc/apt/sources.list` only contains

> `deb http://raspbian.raspberrypi.org/raspbian/ buster main contrib non-free rpi`

The file `/etc/apt/sources.list.d/photonix.list` contains

> `deb https://dl.yarnpkg.com/debian/ stable main`

Does that help? I have other \*.list files corresponding to other apps.

– Edit to add - -

The webadmin throws out an error when I try to update. And when I run `sudo apt-get update` on the command line I see that it’s the same public key error. So I update the distro, and then use checkrestart and clean up some old files. (I followed yunohost’s [troubleshoot guide](https://forum.yunohost.org/t/yunohost-troubleshooting-guide/577) up until that point).

The public key error still persists, so I read up on keys and keyservers, and I try to add the keys in the error with

> `gpg --keyserver keyring.debian.org --recv-keys <PUBLIC_KEY>`

Which gives me the following for both keys (except the first line, it only appeared when I ran the command for the first time)

> `gpg: keybox '/home/admin/.gnupg/pubring.kbx' created `  
> `gpg: no valid OpenPGP data found.`  
> `gpg: Total number processed: 0`

And the error still persists. So based on this, it looks like the server can’t get the public keys for `http://cdn-fastly.deb.debian.org/debian`, or at least not from `keyring.debian.org`

Am I understanding the problem correctly or am I off on a wild goose chase?

– Edit again—

I tried getting the keys without specifying server:

```auto
$ gpg --recv-keys 648ACFD622F3D138
gpg: key DC30D7C23CBBABEE: new key but contains no user ID - skipped
gpg: Total number processed: 1
gpg: w/o user IDs: 1

```

It still throws out the public key’s error.

Thanks for your help  
Martin

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