diff --git a/README.md b/README.md
index 14e53ed..8b06d0c 100644
--- a/README.md
+++ b/README.md
@@ -163,18 +163,19 @@ GRANT ALL PRIVILEGES ON kaidi_finance.* TO 'kaidi'@'KAIDI_SERVER_IP';
 管理员数据和运维人员新增的环境变量：
 
 ```bash
-curl -fsSL https://git.awaioi.com/ERP-Team/kaidi/releases/download/v1.0.0-preview.19/install.sh \
+curl -fsSL https://git.awaioi.com/ERP-Team/kaidi/releases/download/v1.0.0-preview.22/install.sh \
   | sudo env KAIDI_REINSTALL=true KAIDI_SETUP_WIZARD=false bash
 ```
 
 没有显式设置 `KAIDI_APP_PORT` 时，修复性重装会沿用 `/etc/kaidi/kaidi.env` 中的原端口。重装失败会恢复原应用链接、Java 运行时、环境文件和 systemd 单元；脚本会明确报告回滚不完整，
-不会把恢复失败吞掉。
+不会把恢复失败吞掉。新版本安装器在 `KAIDI_REINSTALL=true` 时默认使用生产修复模式，显式的
+`KAIDI_SETUP_WIZARD=false` 仅用于兼容旧版本安装器。
 
 如果安装器已完成但向导尚未提交，可执行下面的命令重新生成一次性安装码；该恢复路径只接受仍处于向导模式且未锁定的安装，正式模式不会被覆盖。
 
 ```bash
-curl -fsSL https://git.awaioi.com/ERP-Team/kaidi/releases/download/v1.0.0-preview.19/install.sh \
-  | sudo env KAIDI_REINSTALL=true bash
+curl -fsSL https://git.awaioi.com/ERP-Team/kaidi/releases/download/v1.0.0-preview.22/install.sh \
+  | sudo env KAIDI_REINSTALL=true KAIDI_SETUP_WIZARD=true bash
 ```
 
 ### 停用并移除程序
diff --git a/deploy/install.sh b/deploy/install.sh
index b4401b2..b684727 100755
--- a/deploy/install.sh
+++ b/deploy/install.sh
@@ -18,7 +18,13 @@ SERVER_ADDRESS=${KAIDI_SERVER_ADDRESS:-127.0.0.1}
 PROXY_TARGET=
 TRUSTED_PUBLIC_KEY_SHA256=${KAIDI_RELEASE_PUBLIC_KEY_SHA256:-807c6aec1dc3f7ce494db16aa9d763c66f292033c38f328afd0390d2715a8cd9}
 REINSTALL=${KAIDI_REINSTALL:-false}
-SETUP_WIZARD=${KAIDI_SETUP_WIZARD:-true}
+if [ "${KAIDI_SETUP_WIZARD+x}" = x ]; then
+  SETUP_WIZARD=$KAIDI_SETUP_WIZARD
+elif [ "$REINSTALL" = true ]; then
+  SETUP_WIZARD=false
+else
+  SETUP_WIZARD=true
+fi
 WORK_DIR=
 RELEASE_AUTH_HEADER_FILE=
 INSTALL_TRANSACTION_ARMED=false
diff --git a/scripts/test-install-fixture.sh b/scripts/test-install-fixture.sh
index 3d6146b..d49dcdf 100755
--- a/scripts/test-install-fixture.sh
+++ b/scripts/test-install-fixture.sh
@@ -325,8 +325,11 @@ grep -Fq 'https://git.awaioi.com/api/v1/repos/ERP-Team/kaidi/releases/latest' "$
 grep -Fq 'TRUSTED_PUBLIC_KEY_SHA256=${KAIDI_RELEASE_PUBLIC_KEY_SHA256:-807c6aec1dc3f7ce494db16aa9d763c66f292033c38f328afd0390d2715a8cd9}' "$ROOT/deploy/install.sh" \
   || fail 'installer does not pin the default release public-key fingerprint'
 # shellcheck disable=SC2016 # Match literal installer source.
-grep -Fq 'SETUP_WIZARD=${KAIDI_SETUP_WIZARD:-true}' "$ROOT/deploy/install.sh" \
-  || fail 'installer does not enable the first-run setup wizard by default'
+grep -Fq 'if [ "${KAIDI_SETUP_WIZARD+x}" = x ]; then' "$ROOT/deploy/install.sh" \
+  || fail 'installer no longer distinguishes an explicit setup-wizard selection'
+# shellcheck disable=SC2016 # Match literal installer source.
+grep -Fq 'elif [ "$REINSTALL" = true ]; then' "$ROOT/deploy/install.sh" \
+  || fail 'repair reinstall no longer defaults to production mode'
 ! grep -Fq 'docker run' "$ROOT/deploy/install.sh" \
   || fail 'installer must not create a MySQL container'
 ! grep -Fq 'install_docker' "$ROOT/deploy/install.sh" \