Do not fail postinst when mysql root auth is unavailable

Author: Al-Muhandis

debian/DEBIAN/postinst

@@ -121,37 +121,42 @@ case "$1" in
         # Data base
         # ----------------------------------------------------------------
         if mysql_available; then
-            # Take password from config if set (package update)
-            EXISTING_PASS="$(json_get '.AdminHelperDB.Password')"
+            if mysql -u root -e "SELECT 1" >/dev/null 2>&1; then
+                # Take password from config if set (package update)
+                EXISTING_PASS="$(json_get '.AdminHelperDB.Password')"
 
-            if [ -z "${EXISTING_PASS}" ]; then
-                DB_PASS="$(openssl rand -base64 16 | tr -d '/+=' | head -c 20)"
-                echo "==> Generated new database password."
-            else
-                DB_PASS="${EXISTING_PASS}"
-                echo "==> Using existing database password from config."
-            fi
+                if [ -z "${EXISTING_PASS}" ]; then
+                    DB_PASS="$(openssl rand -base64 16 | tr -d '/+=' | head -c 20)"
+                    echo "==> Generated new database password."
+                else
+                    DB_PASS="${EXISTING_PASS}"
+                    echo "==> Using existing database password from config."
+                fi
 
-            echo "==> Configuring MySQL/MariaDB for ${DB_NAME}..."
+                echo "==> Configuring MySQL/MariaDB for ${DB_NAME}..."
 
-            mysql -u root <<SQL
+                mysql -u root <<SQL
 CREATE DATABASE IF NOT EXISTS \`${DB_NAME}\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
 CREATE USER IF NOT EXISTS '${DB_USER}'@'localhost' IDENTIFIED BY '${DB_PASS}';
 GRANT ALL PRIVILEGES ON \`${DB_NAME}\`.* TO '${DB_USER}'@'localhost';
 FLUSH PRIVILEGES;
 SQL
 
-            # Rolling out the scheme (IF NOT EXISTS — safe when updating)
-            mysql -u root "${DB_NAME}" < "${SCHEMA_FILE}"
+                # Rolling out the scheme (IF NOT EXISTS — safe when updating)
+                mysql -u root "${DB_NAME}" < "${SCHEMA_FILE}"
 
-            # Write credentials to tgadmin.json
-            json_set \
-                --arg user "${DB_USER}" \
-                --arg pass "${DB_PASS}" \
-                --arg db   "${DB_NAME}" \
-                '.AdminHelperDB.User = $user | .AdminHelperDB.Password = $pass | .AdminHelperDB.Database = $db'
+                # Write credentials to tgadmin.json
+                json_set \
+                    --arg user "${DB_USER}" \
+                    --arg pass "${DB_PASS}" \
+                    --arg db   "${DB_NAME}" \
+                    '.AdminHelperDB.User = $user | .AdminHelperDB.Password = $pass | .AdminHelperDB.Database = $db'
 
-            echo "==> Database configured. Credentials saved to ${CONFIG_FILE}"
+                echo "==> Database configured. Credentials saved to ${CONFIG_FILE}"
+            else
+                echo "WARNING: MySQL/MariaDB is running, but root access without password is denied." >&2
+                echo "         Database bootstrap skipped. Configure DB manually and rerun: sudo dpkg-reconfigure ${PACKAGE_NAME}" >&2
+            fi
         else
             echo "WARNING: MySQL/MariaDB not found or not running." >&2
             echo "         Install it, then run: sudo dpkg-reconfigure ${PACKAGE_NAME}" >&2