Cannot install OS Mac High Sierra

I downloaded High Sierra from the Mac store and received the following error message during the installation process:

The path /System/Installation/Packages/OSInstall.mpkg appears to be missing or damaged. Quit the installer to restart your computer and try again.

I don't know how to quit the installer since I am stuck on this screen. I have rebooted several times, only to come back to this screen/error display. I tried a Safe Mode restart but have been stuck in it for over an hour.

Any help would be appreciated. Thanks.

macOS Sierra (10.12.6)

Posted on Sep 26, 2017 9:36 AM

Top-ranking reply

AFNG

Level 1

14 points

Posted on Sep 26, 2017 11:43 AM

Mine gave the same error message. After rebooting a few times and getting to the same spot, I found a post that said to hold down the shift key (Boot into safe mode) to get past it. I did this and the progress bar froze at about 90%. I hard rebooted it after about 10 minutes of inactivity and tried it again. The second/or third time of trying to boot into safe mode finally progressed. A different looking progress bar appeared followed by the normal progress bar. After that a progress bar appeared telling me that Installation was occurring. ~40minutes later everything was installed and seems to be working fine.

I have no idea if this impacted anything, but while I was on the first screen with the original error message, I clicked the menu bar at the top and connected to my wireless network. Like I said, I have NO IDEA if this impacted anything, but it was something that I did and my system completed the installation successfully.

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51 replies

Feb 19, 2018 11:29 AM in response to woodmeister50

Thank you my computer is back and running

Trungla

Level 1

4 points

Mar 1, 2018 12:04 AM in response to Simon Bøgh

Thanks for your anwser. It’s work for me 🙂

Mar 2, 2018 10:11 AM in response to woodmeister50

Helpful . T

Oct 19, 2017 3:41 AM in response to Smorgie

after unsuccessfully trying the safe mode solution i booted into recovery - went to disk utilities - noticed my ssd wasn't mounted - i mounted my ssd and rebooted which restored my mac to macos sierra - i reinstalled high sierra ...succesfully

ldambra

Level 1

8 points

Feb 12, 2018 5:44 PM in response to Herculacina

I wish I had come across this thread earlier, because I just wasted a ton of time.

So my fix worked, but it was painful. AND, you better have a recent time machine backup, if you want to try it.

So you boot with the option key to the recovery disk. Next choose the option to format the SSD and install the most recent compatible version of OS X. Now I know that sounds stupid, because I was at 13.3.2,going to 13.3.3, but once it failed over and over, I got frustrated and took the nuclear option.

26 hours to restore from backup on the time capsule to get back to where I was when the App store told me to automatically update to OS X 13.3.3.

So, now, here’s my question. Am I stupid enough to try to go to the latest version again.

One final note, I’m running a mid-2011 Mac Pro laptop with 1TB SSD and 32GB of memory. It’s getting a little long in tooth, and I’m wondering how many more versions I’ve got left before Apple obsoletes me.

Thoughts?

Jcw7897

Level 1

12 points

Nov 21, 2017 9:32 PM in response to sarahlou0023

Ended up buying another external hard drive , backed everything up and booted to recovery and reinstalled OS. Took about an hour and a half to install but everything is working fine.

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Cannot install OS Mac High Sierra