[INSTALL] Verifying "VirtualBox.pkg"... never clears -- El Cap 10.11.4

[freef49]

I just had the same issue and google pointed me here. The below worked for me.

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sudo installer -package /Volumes/VirtualBox/VirtualBox.pkg -target /

[KressKress]

I'm having the exact same problem. Stuck infinitely on "Verifying "VirtualBox.pkg"..." I'm running El Capitan 10.11.3, but I guess you guys are saying that isn't part of the problem. My macbook pro is old (circa 2005), but I don't think it's been modified in any way. I don't have issues with other program installs.

[socratis]

I guess you guys are saying that isn't part of the problem.

Since I've taken it up on me to investigate the gist of the problem, I didn't say that 10.11.x isn't part of the problem. It may very well be. The problem is that I haven't seen any evidence for, or against it.

My macbook pro is old (circa 2005), but I don't think it's been modified in any way.

I'm willing to bet against that statement, unless you've never, ever, entered your administrator password in the last 11 years. Did you do a fresh install of 10.11 wiping out everything that was there? If you upgraded, there are a lot of things that can go wrong not as expected. The variables are too many, that's what makes this a pain.

[richardcrossley]

A reboot worked for me. Before rebooting, I ensured no applications would be restarted afterwards.

El Capitan 10.11.4


Kindest Regards,

Richard.

[socratis]

OK, this is the fourth report that a reboot allows for an installation with no problems. Previous reports:

• 20/04/2016, 19:06 by iamflimflam1
• 21/04/2016, 18:40 by EvilJesterJoey
• 25/04/2016, 22:35 by prairie
• 08/05/2016, 17:15 by richardcrossley

For anyone that is facing that problem, please reply to the following:

1. Did you try the install as a normal user or as an administrator (owner)?
2. What did you use to download VirtualBox? Safari? Firefox? Chrome? Opera? Other?
3. Did you try it after a reboot?
4. Open up a Terminal and post the output of the command:
   

      ls -l@ <Full_path_to_Virtualbox_dmg_file>

We'll get to the bottom of this. Eventually...

[iaw4]

Had the same problem. VirtualBox v5.0.20, OS X 10.11.4. The installer never properly opens, so no logs.

indeed. same problem here--stuck in verifying. and same solution:

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sudo installer -package /Volumes/VirtualBox/VirtualBox.pkg -target /

worked for me.

[&Y]

I had same problem with VirtualBox 5.0.20 r106931 on El Capitan 10.11.4. Log Out from Mac and Log In solved my situation.

[AndiH]

Had the same problem: VirtualBox-5.0.20-106931-OSX.dmg on OS X 10.11.4. After reboot everything worked. The dmg File was downloaded with Safari 9.1 (11601.5.17.1) and run with an user account which has admin rights.

-rw-r--r--@ 1 andi staff 89729897 28 Apr 15:35 VirtualBox-5.0.20-106931-OSX.dmg
com.apple.diskimages.fsck 20
com.apple.diskimages.recentcksum 81
com.apple.metadata:kMDItemDownloadedDate 53
com.apple.metadata:kMDItemWhereFroms 128
com.apple.quarantine 61

[socratis]

Thank you AndiH for being the first to actually confirm my suspicions. For anyone coming here, please do the following:

1. Open up a Terminal and look at the output of the command:
   

      ls -l@ <Full_path_to_Virtualbox_dmg_file>

2. If you see anything in the output that contains the line:
   

      com.apple.quarantine

   issue the command:
   

      sudo xattr -d com.apple.quarantine <Full_path_to_Virtualbox_dmg_file>

3. Launch the DMG. No need to reboot, logout or sacrifice a goat.

And I'm willing to bet that in almost all the cases you downloaded VirtualBox using Safari. Explanation will follow as soon as I get a second confirmation.

[GreySalad]

I was able to install using the the initial sudo command fix, but I read the rest of this thread and would feel bad if I didn't try to provide a log.

So I just followed Socratis' steps (After running the sudo - I still couldn't install using the .dmg of course.) I actually downloaded this through Chrome Version 50.0.2661.86 (64-bit)

Initial ls -l@:

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   com.apple.diskimages.fsck         20
   com.apple.diskimages.recentcksum         80
   com.apple.metadata:kMDItemWhereFroms        131
   com.apple.quarantine         64

Ran sudo xattr -d com.apple.quarantine <Full_path_to_Virtualbox_dmg_file>

Second ls -l@:

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      com.apple.diskimages.fsck         20
   com.apple.diskimages.recentcksum         80
   com.apple.metadata:kMDItemWhereFroms        131 

I was still unable to install by just double clicking the installer.

[TheBrawnyMan]

Ran into this problem as well. followed to the end of the thread and followed Socratis suggestion to remove the quarantine attr from the DMG. I can confirm that this was downloaded using Safari. Removing the quarantine attr resolves the issue.

[socratis]

@TheBrawnyMan, @GreySalad
Thank you both for trying to see the attributes of the file. It "feels" like something is going on with the extended attributes and GateKeeper.

@GreySalad
Unfortunately I didn't even think about Chrome, so I didn't try it. My bad. Would you mind trying something else?. Try each of the following commands, one at a time. See if and when the installer might get through. There maybe an additional attribute that prevents the verification.

   sudo xattr -d com.apple.quarantine <Full_path_to_Virtualbox_dmg_file>
   sudo xattr -d com.apple.diskimages.fsck <Full_path_to_Virtualbox_dmg_file>
   sudo xattr -d com.apple.diskimages.recentcksum <Full_path_to_Virtualbox_dmg_file>
   sudo xattr -d com.apple.metadata:kMDItemWhereFroms <Full_path_to_Virtualbox_dmg_file>

[GreySalad]

Sorry for the late reply. I've actually removed all the attributes from the .dmg now, still the same result. Double-clicking the .pkg brings up the verification loading bar and it doesn't update.

[socratis]

@GreySalad
Thank you for testing this! On the other hand, I "hate" you for not supporting my theory
Damn, I thought I was on to something...
But, as I said time and time again, this is clearly an OSX issue with Gatekeeper. Just search for "mac stuck verifying" and you'll see what I mean. The problem is that no one has a solid answer so far. Thanks again.

[MichaelMWelch]

Just for the benefit of anyone coming across this thread after Googling on the problem (as I just did), the above-mentioned solution of calling 'installer' from the command line worked for me also.