GPG error the public key is not available

[Wilhelm]

Hey, i installed Proxmox backup server on a PC and when i try to update it, it gives me the following error message:

root@abs : apt—get update
Hit: I http: //security.debian.org/debian—security bookworm—security InReIease
Hit: 2 http://ftp.debian.org/debian bookworm InReIease
Hit: 3 http: // ftp-debian.org/debian bookworm—updates InReIease
Hit: 4 http: //download.proxmox.com/debian/pve bookworm InReIease
Get:5 http: //download.proxmox.com/debian/pbs Buster InReIease [2, 673 B]
Erz: 5 http://download.proxmox.com/debian/pbs Buster InReIease
The following signatures couldn•t be verified because the public key not available: NO PUBKEY 7BF2812E8A6E88EO
Reading package li3ts. . .
Done
GPG error: http://download.proxmox.com/debian/pbs Buster InReIease: The following signatures couldn't be verified because the public key is not available:
The repository • http://download.proxrnox.com/debian/pb3 Buster InReIease' is not signed.
Updating from such a repository can't be done securely, and therefore disabled by default.
See apt—secure (8) manpage for repository creation and user configuration detai13.
NO PUBKEY 7BF2812E8A6E88EO

I already searched for a solution but none of them worked.

this is my first time with proxmox and im fairly new to all of this.
thanks in advance.

 

[Neobin]

1. Did you install the key: [1]?
2. For your Debian 12/Bookworm, you also need the bookworm PBS repository: [2] and not the buster one!

Edit: I overlooked, that you already installed PBS and it is only about updating. So, configuring the correct PBS repository might already be enough. If not, then add the key.

[0] https://pbs.proxmox.com/docs/installation.html
[1] https://pbs.proxmox.com/docs/installation.html#secureapt
[2] https://pbs.proxmox.com/docs/installation.html#proxmox-backup-no-subscription-repository

 

[Wilhelm]

I put this in the following file:
File: /etc/apt/sources.list
deb http://deb.debian.org/debian bookworm main contrib
deb http://deb.debian.org/debian bookworm-updates main contrib

# Proxmox Backup Server pbs-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
deb http://download.proxmox.com/debian/pbs bookworm pbs-no-subscription

# security updates
deb http://security.debian.org/debian-security bookworm-security main contrib
deb http://download.proxmox.com/debian/pbs bookworm pbstest

and i ran the following command:
wget https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg -O /etc/apt/trusted.gpg.d/proxmox-release-bookworm.gpg

but it still doesnt work. What am i doing wrong?

 

[tom]

but it still doesnt work. What am i doing wrong?

Please post again the full output of:

> apt update

 

[Neobin]

deb http://download.proxmox.com/debian/pbs bookworm pbs-no-subscription

deb http://download.proxmox.com/debian/pbs bookworm pbstest

Also: pbs-no-subscription is enough; no need for: pbstest, unless you really want to test the newest released packages out, of course...