chinahilaria

Q: An error occurred while installing Mac OS X

My MacAir 13" Mid 2012 had the El Capitan latest version 10.11.5 installed. Suddenly a morning a few days ago it starting misbehaving, getting stuck, and when rebooting the system it appeared a screen with a folder in the center with a ¨?¨in the center. Sometimes it managed to reboot the system to get to the desktop screen but getting stuck again and again. I rebooted the system in Safe Mode, deleted some login items, suspecting an item might be troubling the starting process, but it did not help.

 

My decision was to restore the system  installing the El Capital again after formatting the hard disk, but now the problem was another: The download was good, but when installing just a few minutes before finishing an error appeared on the screen saying: An Error Occurred While Installing Mac OS X. And I tried, tried several times until I decided to take it to the authorized technical service, but they could only installed the El Capitan 10.11.1 arguing that they it was the only version they could manage to installed after several trials in installing the El Capitan 10.11.5

 

So, they did not solve the problem fully, cause now it seems I am not able to have the latest version of El Capitan, and now I am not sure if I run the restoration via Time Machine because the problem could show again.

 

1- Somebody know how to fix this, installing the latest version without having the Error message?

2. If not, what happens if I restore from Time Machine on this version of El Capitan 10.11.1 if I had the backup from a newer version 10.11.5

MacBook Air, Mac OS X (10.0.x), Lion

Posted on Jul 18, 2016 8:55 AM

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Q: An error occurred while installing Mac OS X

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  • by Eric Root,

    Eric Root Eric Root Jul 18, 2016 1:47 PM in response to chinahilaria
    Level 9 (70,011 points)
    iTunes
    Jul 18, 2016 1:47 PM in response to chinahilaria

    Unless something goes wrong, you should be able to restore from Time Machine without any problems.

     

    You can also try installing the newly released update to 10.11.6.

     

    Try running the combo update. It installs all previous updates plus the new one, which can replace any files that may have become corrupted.

     

    10.11.6 combo update

  • by franzkaiser,

    franzkaiser franzkaiser Jul 18, 2016 2:15 PM in response to chinahilaria
    Level 2 (294 points)
    Mac OS X
    Jul 18, 2016 2:15 PM in response to chinahilaria

    I'm on a Macbook Air 13" Late 2012. I was previously running OS X 10.11.4. When I attempted to update to 10.11.5, I received the error message "An Error Occurred While Installing Mac OS X". After a restart, the comp initially appeared to run fine. I later noticed, though, that it could not mount any disc images regardless of their origin. This included attempts to reinstall the 10.11.5 update and to reinstall the OS from scratch via Apple download. I had previously created an install copy of 10.11.3 on a flash drive, so I was able to use this to reinstall the OS. My plan now is to follow the advice of "Eric Root" above and do the 10.11.6 combo update. I will create a flash drive version first in case the original error recurs.

  • by chinahilaria,

    chinahilaria chinahilaria Jul 19, 2016 9:02 AM in response to Eric Root
    Level 1 (4 points)
    Mac OS X
    Jul 19, 2016 9:02 AM in response to Eric Root

    Hi Eric, unfortunately the update to 10.11.6 did not pass the test since it got stuck in the middle of the process. But I managed to restore via Time Machine where the 10.11.5 was the backup. But when boot the system and I log in with any user It gets stuck, i can only move the pointer but i can not open or click on anything.  Then when I reboot again i behaves very differrent evrytime. Sometimes ir appears the gray screen witha circle in the center, then other the apple icon and the progess bar movimg super slowly, and some others it boots great but when i log in it gets stuck again. The behavior changes.

     

    Some people are telling me that it might be a problem with th SSD disk, that itmight be damage, eventhough the hardware diagnostic does not show that.

  • by chinahilaria,Solvedanswer

    chinahilaria chinahilaria Jul 22, 2016 2:42 PM in response to chinahilaria
    Level 1 (4 points)
    Mac OS X
    Jul 22, 2016 2:42 PM in response to chinahilaria

    It turned out that the SSD hard disk was damaged in a small portion. No any apple diagnostic was able to detect that, but using a third party diagnostic showed that it had some uncorrected errors and the disk might failed soon, which obviously was happening now. Nevertheless, the disk at the end allowed me to install the 10.11.5 then run the update to 10.11.6, I discovered that when I installed Dropbox, all the system crashed again, apparently because Dropbox reads and writes using all parts of the HD. At least that is my reasoning. I had to buy a new SSD (and of course I took advantage to do the upgrade in space to 240gb)