Question:

After I downloaded the Collector installer for Mac OS and mounted the installer volume, when I double clicked the packaged "Sumo Logic Collector Installer.app," the following error is displayed:

"Sumo Logic Collector Installer.app is damaged and can't be opened. You should eject the disk image."

What's wrong? 

Answer:

This is an Apple configuration issue. By default, when you buy a new Mac loaded with OSX 10.8 (Mountain Lion) or 10.9 (Mavericks), or update from an older OS, the "Security and Privacy" options under "System Preferences" set the value to "Mac AppStore". This restricts mounting and launching packaged applications to only those downloaded from the Mac AppStore. Due to this restriction, when you mount the installer for Sumo Logic Collector and try to launch the packaged application, Mac OS determines that there is a signature mismatch and that the application doesn't belong to the Mac AppStore. The signature mismatch leads to the damaged installer error and asks you to eject the mounted volume/installer.

Solution 1:

 To allow an application from an unidentified developer to run, perform these steps:

  1. Control + click on the "Sumo Logic Collector Installer.app" under the mounted volume.
  2. From the context menu, click Open.

The installer is launched. 

Solution 2:

To prevent this message from occurring with other applications, you may also update the permissions for downloading and opening applications from unidentified developers.

  1. Open "System Preferences".
  2. Open "Security & Privacy".
  3. Go to the "General" tab.
  4. Under the section labeled "Allow apps download from:" select "Anywhere".
  5. Re-download the Collector App and attempt the install again.

For further assistance and queries, please contact Sumo Logic Support by opening a new ticket through the support portal.