Это же добавит его репозиторий? ЭТО МОЖНО ДЕЛАТЬ БЕСПЛАТНО?

'''Adapt your sources.list

Add the Proxmox VE repository:

echo «deb [arch=amd64] http://download.proxmox.com/debian/pve bookworm pve-no-subscription» > /etc/apt/sources.list.d/pve-install-repo.list

Add the Proxmox VE repository key as root (or use sudo):

wget https://enterprise.proxmox.com/debian/proxmox-release-bookworm.gpg -O /etc/apt/trusted.gpg.d/proxmox-release-bookworm.gpg

verify

sha512sum /etc/apt/trusted.gpg.d/proxmox-release-bookworm.gpg 7da6fe34168adc6e479327ba517796d4702fa2f8b4f0a9833f5ea6e6b48f6507a6da403a274fe201595edc86a84463d50383d07f64bdde2e3658108db7d6dc87 /etc/apt/trusted.gpg.d/proxmox-release-bookworm.gpg

Update your repository and system by running:

apt update && apt full-upgrade'''

Перемещено hobbit из general