Proxmox v8

deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware
deb http://deb.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware
deb http://deb.debian.org/debian bookworm-updates main contrib non-free non-free-firmware
deb http://deb.debian.org/debian/  bookworm-backports main contrib non-free non-free-firmware

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



Proxmox v7

deb http://deb.debian.org/debian/ bullseye main contrib non-free
deb http://security.debian.org/debian-security bullseye-security main contrib  non-free
deb http://deb.debian.org/debian/ bullseye-updates main contrib  non-free
deb http://deb.debian.org/debian bullseye-backports main contrib  non-free

deb http://download.proxmox.com/debian/pve bullseye pvetest
deb http://download.proxmox.com/debian/pve bullseye pve-no-subscription



Proxmox v6

deb http://deb.debian.org/debian/ buster  main contrib non-free
deb http://security.debian.org/debian-security buster -security main contrib  non-free
deb http://deb.debian.org/debian/ buster -updates main contrib  non-free
deb http://deb.debian.org/debian buster -backports main contrib  non-free

deb http://download.proxmox.com/debian/pve buster  pvetest
deb http://download.proxmox.com/debian/pve buster  pve-no-subscription