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I have a new MacBook Air. I just bought it and first started it. I try to update it to the latest version, but I get Installation failed. I try to install macOS 10.14.5.

Where are the updates stored after they are downloaded? Maybe it works if I delete it and download the update again?

I am totally new to macOS any help is appreciated.

  • What is current version ? – ankiiiiiii May 27 at 15:41
  • macOS Mojave 10.14.2 – Black May 27 at 15:59
  • Did you try installing from App Store? – ankiiiiiii May 27 at 16:00
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    You can get the downloadable Combo Updater to 10.14.5 at this link. Make sure you do a full backup before you run any updates. – IconDaemon May 27 at 16:48
  • Although I recommend waiting for a few days and getting yourself familiar to the file structure and usage of Mac as well as appleID . It can get tough to come out a problem in case you run into trouble while updating. @Black – ankiiiiiii May 27 at 17:16
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I had to disable System Integrity Protection (SIP). Just follow this answer:

https://apple.stackexchange.com/a/361046/333653

Then I had to open a terminal and delete all folders in /Library/Updates with sudo rm -Rf e.g. sudo rm -Rf 041-57076. These are the update files, I need to delete them because they are corrupted because of poor internet connection.

Now I triggered the update again, it began to download the update again and now it works :)

If it does still fail, then try this procedure again, but connect via cable not via Wifi.

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    +1 for documenting where internally these are stored. I normally just boot to internet recovery to get a fresh copy of everything. – bmike May 28 at 9:24
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    You do not need to disable System Integrity Protection (SIP). Simply boot to the Recovery HD and delete it from Terminal there and no need to use sudo as it's already a root shell. Then reboot the Mac. BTW You do need to delete it from e.g., /Volumes/Macintosh\ HD/Library/Updates when done from the Recovery HD. – user3439894 May 28 at 9:49
  • Please close the question using the tick mark, then I would be able to mark another question as duplicate of this one. – ankiiiiiii Jun 12 at 14:49
  • @ankiiiiiii, ok I did. I had to wait until I can do it – Black Jun 13 at 5:39

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