This script corrects Proxmox VE APT sources by disabling commercial repositories and enabling community repositories. It is designed to be transparent, showing a diff of all proposed changes and asking for user confirmation before applying them.

correct-pve-sources.sh

#!/usr/bin/env bash
#
# This script corrects Proxmox VE APT sources by disabling commercial repositories
# and enabling community repositories. It shows a diff of all proposed changes and
# asks for user confirmation before applying them.
#

set -euo pipefail

# --- Helper Functions ---

propose_and_apply_change() {
    local file_path="$1"
    local new_content
    new_content=$(cat)

    echo "Processing: ${file_path}"

    if [[ -f "$file_path" ]]; then
        local current_content
        current_content=$(cat "$file_path")

        if [[ "${current_content}" == "${new_content}" ]]; then
            echo "No changes needed."
            echo
            return
        fi

        echo "Diff of proposed changes:"
        diff -u --label="Current: ${file_path}" --label="Proposed: ${file_path}" \
            <(echo "${current_content}") <(echo "${new_content}") || true
    else
        echo "File does not exist. Proposed content:"
        echo "${new_content}"
    fi

    echo
    read -p "Apply these changes? (y/n) " -n 1 -r
    echo

    if [[ $REPLY =~ ^[Yy]$ ]]; then
        echo "$new_content" | tee "$file_path" >/dev/null
        echo "Changes applied."
    else
        echo "Changes skipped."
    fi
    echo
}

# --- Proxmox Version Specific Handlers ---

handle_pve8() {
    echo "Handling Proxmox VE 8.x (.list format)..."
    echo

    propose_and_apply_change "/etc/apt/sources.list" <<'EOF'
deb http://deb.debian.org/debian bookworm main contrib
deb http://deb.debian.org/debian bookworm-updates main contrib
deb http://security.debian.org/debian-security bookworm-security main contrib
EOF

    propose_and_apply_change "/etc/apt/sources.list.d/pve-enterprise.list" <<'EOF'
# deb https://enterprise.proxmox.com/debian/pve bookworm pve-enterprise
EOF

    propose_and_apply_change "/etc/apt/sources.list.d/pve-no-subscription.list" <<'EOF'
deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription
EOF
}

handle_pve9() {
    echo "Handling Proxmox VE 9.x (deb822 format)..."
    echo

    propose_and_apply_change "/etc/apt/sources.list.d/debian.sources" <<'EOF'
Types: deb
URIs: http://deb.debian.org/debian
Suites: trixie
Components: main contrib
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

Types: deb
URIs: http://security.debian.org/debian-security
Suites: trixie-security
Components: main contrib
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

Types: deb
URIs: http://deb.debian.org/debian
Suites: trixie-updates
Components: main contrib
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg
EOF

    propose_and_apply_change "/etc/apt/sources.list.d/pve-enterprise.sources" <<'EOF'
Types: deb
URIs: https://enterprise.proxmox.com/debian/pve
Suites: trixie
Components: pve-enterprise
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
Enabled: false
EOF

    propose_and_apply_change "/etc/apt/sources.list.d/pve-no-subscription.sources" <<'EOF'
Types: deb
URIs: http://download.proxmox.com/debian/pve
Suites: trixie
Components: pve-no-subscription
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF
}

# --- Main Execution ---

main() {
    clear
    echo "Proxmox VE APT Source Corrector"
    echo "--------------------------------"
    echo "This script disables commercial sources and enables community sources."
    echo "It will show all proposed changes and ask for permission before modifying files."
    echo "NOTE: This script must be run as root."
    echo

    if [[ $EUID -ne 0 ]]; then
        echo "ERROR: This script must be run as root."
        exit 1
    fi

    if ! command -v pveversion &>/dev/null; then
        echo "ERROR: This script is intended to be run on a Proxmox VE host."
        exit 1
    fi

    local pve_version
    pve_version=$(pveversion | awk -F'/' '{print $2}' | awk -F'-' '{print $1}')
    local pve_major
    pve_major="${pve_version%%.*}"

    echo "Detected Proxmox VE Version: ${pve_version}"
    echo

    if [[ "$pve_major" == "8" ]]; then
        handle_pve8
    elif [[ "$pve_major" == "9" ]]; then
        handle_pve9
    else
        echo "ERROR: Unsupported Proxmox VE major version: $pve_major"
        echo "Supported versions are 8.x and 9.x."
        exit 1
    fi

    echo "Script finished. Run 'apt update' to refresh package lists."
}

main