OS X Installation

These instructions are for installing Lasso Server on OS X. An Intel-based Mac running OS X 10.7 or later is required.

OS X Prerequisites

  • Lasso’s PDF functions require a Java 8 runtime. The latest version of Oracle’s Java Runtime Environment can be downloaded from the Java support site.
  • OS X 10.11 and later also requires Java 6 from Apple due to an outstanding bug in Oracle’s Java distribution.


  1. Download and expand the Lasso Server for OS X installer from the LassoSoft website.

  2. Run the installer to perform a standard installation, which will install Lasso Server and start or restart the system’s Apache. By default the following files and folders will be installed:

    Apache config:
    • /etc/apache2/other/mod_lasso9.conf (OS X 10.7 and later)
    • /etc/apache2/sites/mod_lasso9.conf (OS X Server 10.7)
    • /Library/Server/Web/Config/apache2/sites/mod_lasso9.conf (OS X Server 10.8 and later)
    Apache plugin:
    • /usr/libexec/apache2/mod_lasso9-2.2.so (OS X 10.7 to 10.9)
    • /usr/local/libexec/apache2/mod_lasso9-2.4.so (OS X 10.10 and later)
    shared library:
    • /Library/Frameworks/Lasso9.framework
    launchd item:
    • /Library/LaunchDaemons/com.lassosoft.lassoinstancemanager.plist
    • /etc/paths.d/lasso
    • /usr/local/lasso/lasso9
    • /usr/local/lasso/lassoc
    • /usr/local/lasso/lassoim
    • /usr/local/lasso/lassoserver
    • /usr/local/lasso/lassospitfire
    user data:
    • /var/lasso

    This installer supports installing to other mounted bootable volumes, and can be run on the command line with sudo installer -pkg Lasso*.pkg -target /.

  3. When the installer has finished, click on the link on the web page that appears to load the initialization form (found on your own machine at http://localhost:8090/lasso9/lux) and complete your Lasso installation.

From here on, you can read up on using the Lasso Instance Manager and Instance Administration and Configuration interfaces.


On OS X Server, verify that the Web or Websites service is running in the Server application.


If you upgrade your OS X installation or install OS X Server after installing Lasso Server, use the installer to reinstall the Apache component to place its files in the correct locations.