Cannot load DMG files after installing 10.11.5

Have a Macbook Pro (early 2013) with OX X 10.11.5. When I installed the update the installation froze but after reading suggestions I rebooted into Safe Mode, and after it ran disk utility I was able to reboot and find that the update had installed completely. Everything seemed to be working OK so concluded the disk utility had fixed the errors.

Now a week later I needed to update some software and find that it will not load or run DMG files, I tried more than one file so it seems to be related to the type of file (DMG), not the source (Adode, Epson among others). Each time I get a Protocol wrong type for socket message. I tried rebooting and downloading again with no success. I have already checked Finder/Preferences to make sure that External Disks is enabled. My research does not produce any other suggestions.

Has anyone else run into this? I can't use my standalone Epson scanner until I can do an update which it will not launch. Nor update any of my other softrware

MacBook Pro, OS X El Capitan (10.11.5)

Posted on May 21, 2016 2:53 PM

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anneflco Author

Level 1

16 points

Posted on May 24, 2016 9:01 AM

I had tried using disk utility and loading the dmg that way, no luck, same error message. Also went into Safe Mode and tried the same thing - this time did not get the error message but it never loaded, just did nothing. Having read Seapaddle's post which also came from you this morning I resolved the issue by going into Recovery Mode and reinstalling the software figuring even if it came up in 10.11.4 I could use the Combo Updater to get back to where I was but Apple's system did recognize the machine was in 10.11.5 and reinstalled it. And I am now able to load dmg files and everything else seems OK. I am posting this for others who are running into this.

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17 replies

May 23, 2016 10:36 AM in response to anneflco

I'm facing the same issue, I had to force restart after my MacBook Pro simply wouldn't complete the update to 10.11.5. Going to try and reinstall the OS, and hope that fixes things.

I'm seeing this is the syslog every time I try to attach an image (dmg/iso)

May 23 23:05:37 Sirius CoreServicesUIAgent[314]: Error -60005 creating authorization

May 23 23:05:38 Sirius diskimages-helper[924]: *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid

Going to try reinstalling, hopefully that should fix things

dialabrain

Level 10

136,199 points

May 21, 2016 3:00 PM in response to anneflco

Download and run this: Download OS X El Capitan 10.11.5 Combo Update

It should replace any bad files that may have been created when the first update didn't go smoothly.

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Cannot load DMG files after installing 10.11.5