flash installation failing after 50%

Hi,

The main error in this situation is: installer: Certificate used to sign package is not trusted. Use -allowUntrusted to override. which indicates something along the validation chain is failing.  Unfortunately, there are a number of reasons for this.  First, I'd like to verify if the standalone/offline installer is returning the same error, and if so, verify the signature/certificate is correct.  Please do the following:

1. Download the standalone/offline installer posted at the bottom of the Installation problems | Flash Player | Mac page, in the 'Still having problems' section.  There are two files listed.  Download the 'Flash Player for Safari and Firefox - NPAPI' installer
2. Run the installer

If it fails (I suspect it will), check the FlashPlayerInstallManager.log file and see if it has the same Certificate error (new entries are at the bottom of the file and time-stamped). If the error is the same, do the following:

1. Extract 'Install Adobe Flash Player.app' from the downloaded DMG and save it to the desktop
2. Right-click on the extracted APP and select Show Package Contents
3. A Finder window will open, navigate to the /Contents/Resources directory
4. Open the terminal app (/Applications/Utilities/Terminal.app)
5. At the prompt type: pkgutil --check-signature <path Flash Player Install Manager.app/Contents/Resources/Adobe Flash Player.pkg>.  For example:  pkgutil --check-signature /Users/labuser/Desktop/Install\ Adobe\ Flash\ Player.app/Contents/Resources/Adobe\ Flash\ Player.pkg
   • It may be easier to just drag Adobe Flash Player.pkg from the /Contents/Resources directory (step 3) onto the Terminal window after typing pkgutil --check signature
6. Copy and past the certificate information in your reply.

Thank you.

--

Maria