diff --git a/deploy/manage.sh b/deploy/manage.sh
index 981f8f8..7ac0d41 100644
--- a/deploy/manage.sh
+++ b/deploy/manage.sh
@@ -8,7 +8,6 @@
 #   bash /opt/crypto_monitor/deploy/manage.sh
 #
 set -e
-set -u
 if [ -n "${BASH_VERSION:-}" ]; then
   set -o pipefail
 fi
@@ -17,10 +16,20 @@ INSTALL_ROOT="${INSTALL_ROOT:-/opt/crypto_monitor}"
 GIT_URL="${GIT_URL:-https://git.bz121.com/dekun/crypto_monitor.git}"
 GIT_BRANCH="${GIT_BRANCH:-main}"
 
-SCRIPT_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/$(basename "${BASH_SOURCE[0]}")"
-DEPLOY_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-REPO_ROOT="$(cd "${DEPLOY_DIR}/.." && pwd)"
-LIB_DIR="${DEPLOY_DIR}/lib"
+# curl | bash 时脚本从 stdin 执行,BASH_SOURCE[0] 为空;须先安全探测再 set -u
+_script_src="${BASH_SOURCE[0]:-}"
+if [[ -n "${_script_src}" && -f "${_script_src}" ]]; then
+  DEPLOY_DIR="$(cd "$(dirname "${_script_src}")" && pwd)"
+  REPO_ROOT="$(cd "${DEPLOY_DIR}/.." && pwd)"
+  LIB_DIR="${DEPLOY_DIR}/lib"
+else
+  DEPLOY_DIR=""
+  REPO_ROOT=""
+  LIB_DIR=""
+fi
+unset _script_src
+
+set -u
 
 repo_ready() {
   [[ -f "${1}/deploy/setup_env.sh" && -f "${1}/deploy/manage.sh" ]]
@@ -33,7 +42,9 @@ bootstrap_repo() {
     LIB_DIR="${DEPLOY_DIR}/lib"
     return 0
   fi
-  if repo_ready "${REPO_ROOT}"; then
+  if [[ -n "${REPO_ROOT}" ]] && repo_ready "${REPO_ROOT}"; then
+    DEPLOY_DIR="${REPO_ROOT}/deploy"
+    LIB_DIR="${DEPLOY_DIR}/lib"
     return 0
   fi