diff --git a/install.sh b/install.sh
index c13da46..e2beffb 100755
--- a/install.sh
+++ b/install.sh
@@ -18,7 +18,6 @@ die() { echo "overcooked-install: $*" >&2; exit 1; }
 [ "$(id -u)" = 0 ] || die "请使用 sudo/root 执行"
 command -v docker >/dev/null 2>&1 || die "未找到 Docker Engine"
 docker compose version >/dev/null 2>&1 || die "未找到 Docker Compose v2"
-command -v git >/dev/null 2>&1 || die "未找到 git"
 [ -n "$SERVER_IP" ] || SERVER_IP=$(ip -4 route get 1.1.1.1 2>/dev/null | awk '{for (i=1;i<=NF;i++) if ($i=="src") {print $(i+1); exit}}')
 [ -n "$SERVER_IP" ] || SERVER_IP=$(hostname -I 2>/dev/null | awk '{print $1}')
 [ -n "$SERVER_IP" ] || die "无法识别服务器 IP，请设置 OVERCOOKED_SERVER_IP"
@@ -36,13 +35,8 @@ is_ipv4 "$SERVER_IP" || die "仅支持有效 IPv4 地址：$SERVER_IP"
 [ -n "$ACTIVATION_CODE" ] || die "授权码不能为空"
 
 install -d -m 700 "$ROOT"
-for repo in OverCooked-S Overcooked-E; do
-  if [ ! -d "$ROOT/$repo/.git" ]; then
-    git clone --depth 1 "https://git.leee.xin/OverCooked/$repo.git" "$ROOT/$repo"
-  else
-    git -C "$ROOT/$repo" fetch --depth 1 origin && git -C "$ROOT/$repo" reset --hard FETCH_HEAD
-  fi
-done
+# This installer is intentionally source-free. It must never access the
+# private OverCooked-S or Overcooked-E repositories.
 install -d -m 700 "$ROOT/config"
 command -v openssl >/dev/null 2>&1 || die "未找到 openssl"
 secret() { openssl rand -hex 32; }
@@ -109,7 +103,7 @@ playback:
   node_id: e-$(hostname | tr -cd '[:alnum:]' | cut -c1-24)
 EOF
 chmod 600 "$ROOT/config/e-server.production.yaml"
-cp "$ROOT/config/e-server.production.yaml" "$ROOT/Overcooked-E/deploy/compose/config/e-server.production.yaml"
+die "公开部署资产缺失：当前 Installer 版本尚未发布 compose/migration 资产；请更新 Installer 包后重试"
 cat >"$ROOT/config/e-public.override.yml" <<'EOF'
 services:
   e-server: