VirtualBox Mac OS X Installer Issue

[Enclle]

Hello,

I tried to update VirtualBox for Mac OS X to the latest version, but it stops on the screen "Verifying 'VirtualBox.pkg'...".

I downloaded these DMG images ​http://download.virtualbox.org/virtualbox/5.0.20/VirtualBox-5.0.20-106931-OSX.dmg (from VirtualBox.Org Downloads page) and https://www.virtualbox.org/download/testcase/VirtualBox-5.0.21-107994-OSX.dmg (from TestBuilds VirtualBox.Org wiki page). With the two installers I had the same problem: I got stook in the "Verifying..." dialog. The steps are: After downloading the dmg images, open/mount it, then double click on the "VirtualBox.pkg", then it starts the Installer with the 'Verifying "VirtualBox.pkg"..." dialog and then stops.

Apparently it isn't using too much memory or processor (processor usage less than 5% all time and memory usage way less than the maximum physical memory).

I am using Mac OS X El Capitan 10.11.5

It's the first (i.e., the only) installer that I have problem with.

I let it "verifying" for more than half an hour and nothing happened.

[Frank Mehnert]

Never seen this. Any change with VirtualBox 5.0.22?

[Enclle]

Tried version 5.0.22. Still the same problem.

[Frank Mehnert]

I saw this problem once locally on a MBP. Installing VBox 5.0.22 did not make progress on a MBP but worked on a Mac Mini. Both run Mac OS X 10.11.5. See ​here. Apparantly this problem exists for other packages as well. For me it helped to reboot the host.

To me this looks like some OS X bug, see e.g. ​here and ​here. Google shows more examples.