AWS Lightsail Bitnami LAMP安装第二个WordPress实例失败求助

Hey there, let's work through this password issue you're facing when adding a second WordPress instance to your Bitnami LAMP stack on AWS Lightsail. I've dealt with similar oddities before, so here are actionable steps to resolve it:

1. Run the Installer as the Correct User #

Bitnami stacks are designed to be managed with the bitnami user, not root or other accounts. Running the installer with the wrong user can cause permission issues that block password validation.

• Switch to the bitnami user first:

  sudo su bitnami
  

• Then re-run your installation command with the --wordpress_instance_name parameter.

2. Validate the Password File & Content #

It's easy to accidentally copy hidden characters or use the wrong password file. Let's confirm you're using the right credentials:

• Check the content of your bitnami_application_password file to ensure you're using the full, correct password:

  cat ~/bitnami_application_password
  

• Some Bitnami stacks store credentials in /opt/bitnami/bitnami_credentials as well—verify this file too:

  cat /opt/bitnami/bitnami_credentials
  

  Make sure the password you're entering matches exactly (no extra spaces, newlines, or typos).

3. Use Interactive Mode Instead of Command-Line Password Input #

If your password contains special characters (like !, $, or &), the command line might parse them incorrectly, causing validation to fail.

• Run the installer without specifying the instance name parameter first:

  ./bitnami-installer.sh
  

• When prompted, select the option to install a new WordPress instance, enter wordpresskva as the instance name, and manually type your password when asked. This avoids command-line parsing issues.

4. Check Installer Logs for Detailed Errors #

If the above steps don't work, the installer logs will tell you exactly what's failing. Capture the log output to diagnose the issue:

• Run the installation command with logging enabled:

  ./bitnami-installer.sh --wordpress_instance_name wordpresskva 2>&1 > install.log
  

• Open the install.log file and look for lines containing "password" or "error"—this will point you to the root cause (e.g., database access issues, file permission errors).

5. Temporarily Stop Existing Services #

Sometimes the running WordPress instance or related services (Apache, MySQL) can lock resources needed for the new installation.

• Stop Apache and MySQL temporarily:

  sudo /opt/bitnami/ctlscript.sh stop apache mysql
  

• Run the installer, then restart the services once installation completes:

  sudo /opt/bitnami/ctlscript.sh start apache mysql
  

Try these steps in order—most likely one of them will resolve the password validation failure. Let me know if you run into specific error messages that need further debugging!

内容的提问来源于stack exchange，提问作者Neil