{
  "id": "manage-installation-questions",
  "title": "Manage installation questions",
  "url": "https://redis.io/docs/latest/operate/rs/7.8/installing-upgrading/install/manage-installation-questions/",
  "summary": "Describes Redis Enterprise Software installation questions and how to answer them automatically.",
  "content": "\nSeveral questions are displayed during the Redis Enterprise Software installation process.\n\nHere, you'll find a list of these questions and learn how to automatically answer these questions to perform a silent install.\n\n## Installation questions\n\nSeveral questions appear during installation:\n\n- **Linux swap file** - `Swap is enabled. Do you want to proceed? [Y/N]?`\n\n    We recommend that you [disable Linux swap]() in the operating system configuration\n    to give Redis Enterprise Software control of the memory allocation.\n\n- **Automatic OS tuning** - `Do you want to automatically tune the system for best performance [Y/N]?`\n\n    To allow the installation process to optimize the OS for Redis Enterprise Software, answer `Y`.\n    The installation process prompts you for additional information.\n\n    The `/opt/redislabs/sbin/systune.sh` file contains details about the tuning process.\n\n- **Network time** - `Do you want to set up NTP time synchronization now [Y/N]?`\n\n    Redis Enterprise Software requires that all cluster nodes have synchronized time.\n    You can either let the installation process configure NTP\n    or you can [configure NTP manually]().\n\n- **Firewall ports** - `Would you like to open RedisLabs cluster ports on the default firewall zone [Y/N]?`\n\n    Redis Enterprise Software requires that all nodes have [specific network ports]() open.\n    To open the ports, you can:\n\n    - Answer `Y` to let the installation process open these ports.\n    - Answer `N` and configure the firewall manually for [RHEL/CentOS firewall]().\n    - Answer `N` and configure the firewall on the node manually for your OS.\n\n- **Installation verification (rlcheck)** - `Would you like to run rlcheck to verify proper configuration? [Y/N]?`\n\n    Run the `rlcheck` installation verification to make sure that the installation completed successfully.\n    If you want to run this verification at a later time, you can run:\n    \n    ```sh\n    /opt/redislabs/bin/rlcheck\n    ```\n\n- **User already exists** - `The user 'redislabs' already exists, which may lead to problems if it wasn't configured correctly. Would you like to proceed with the installation? (Y/N)?`\n\n- **Group already exists** - `The group 'redislabs' already exists, which may lead to problems if it wasn't configured correctly. Would you like to proceed with the installation? (Y/N)?`\n \n## Answer install questions automatically\n\nTo perform a silent (or automated) install, answer the questions when you start the [install]().  \n\n### Answer yes to all questions\n\nTo automatically answer `yes` to all questions (which accepts the default values), run the [installation script]() with the `-y` parameter:\n\n```bash\n./install.sh -y\n```\n\n### Configure file to answer\n\nUse an answer file to manage your response:\n\n1. Create a text file to serve as an answer file.\n\n    The answer file can contain any of the parameters for the installation questions and indicate the answer for each question with `yes` or `no`.\n\n    For example:\n\n    ```sh\n    ignore_swap=no\n    systune=yes\n    ntp=no\n    firewall=no\n    rlcheck=yes\n    ignore_existing_osuser_osgroup=no\n    ```\n\n    If you use `systune=yes`, the installation answers `yes` to all of the system tuning questions.\n\n1. Run the [installation script]() with the `-c` command-line option and add the path to the answer file.\n\n    For example:\n\n    ```sh\n    ./install.sh -c /home/user/answers\n    ```\n\n",
  "tags": ["docs","operate","rs"],
  "last_updated": "2026-04-01T08:10:08-05:00"
}