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rudolfs/high-sierra-install-fail.md

Last active April 11, 2019 12:44
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This copy of the Install macOS High Sierra.app application is damaged and can't be used to install macOS.
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high-sierra-install-fail.md

I had this problem with a Mid 2010 15" MacBook Pro with no battery installed (running on external power adapter).

Symptom

When installing macOS High Sierra from the USB installer, the following error pops up:

This copy of the Install macOS High Sierra.app application is damaged and can't be used to install macOS.

Solution

The problem seems to be a wrong system time, which might hinder the installer to validate the install image.

  • from within the installer connect to the local WiFi network
  • open Terminal and sync time by running: ntpdate pool.ntp.org
  • once the system time has been set, close Terminal and install macOS from the menu

This might be the solution to this StackExchange question. I wasn't able to post an answer there due to not having enough reputation. Hope this helps somebody with the same problem.

After installing High Sierra and downloading a macOS update from the App Store the Mac would crash on the subsequent boot, this was fixed by setting the bood drive from within the crash report window as described in this gist.

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