This Item Is Temporarily Unavailable El Capitan Reinstall

05-10-2021 by

Mac 911 is a place you can come with no judgement, even if you managed to erase your Mac’s startup disk and you’re not sure what to do next. It happens! (In the spirit of confession, I managed to delete the core operating system off my first Unix system in 1994, because I thought, “This file takes up too much space!”)

At this point, the Mac should start to download the recovery files from the internet and show a status bar. When complete, it should reinstall macOS Recovery and reinstall macOS on the main partition. I am a computer dummy having computer issues. A friend gave me a 24' iMac from 2009, and it worked fine when she gave it to me, using it for internet browsing. I shut it down, put it in storage for a year, and when I fired it back up a year later, it goes into a Kernel Panic reboot.

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If you must reinstall a previously-released version of OS X, you need to restore your Mac using the Time Machine backup that you created before you installed the OS X public beta. Restore your Mac. It sounds tho as you may not be logged into your mac with the same apple ID you used for the beta program or you've already exited. See if you can get a DVD version, Boot from the DVD, hold down 'C' after the chime, erase and format the hard drive Mac OS Extended (Journaled) and do the install, update to OS X.6.8 and from there if you have an Apple ID you can download operating systems from the App Store. With a 2011 iMac with say 8GB of memory go for the latest version, El. I erased my drive and wanted to reinstall OS X El Capitan. After I agreed to the terms then selected my drive I signed into the Apple store. I put the confirmation code in from my phone and it said “This item is temporarily unavailable Try again later”. I tried restarting it and trying then shutting it down and trying but it still won’t work.

Fortunately, Apple has you covered with macOS Recovery. Killing floor 2 character mods. You may know this tool, introduced way back in Mac OS X 10.7 Lion, as a way to start up your computer to run Disk Utility without having your startup drive mounted, to reinstall macOS, and for a number of other technical purposes.

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macOS Recovery occupies a small, invisible partition on your startup drive, and lives quietly there until you need it. But what happens if you erase the entire drive, including this hidden partition?

Macs can reach out over the internet and bootstrap themselves back into operation, as the Mac firmware—software built into a Mac that’s persistent and isn’t dependent on the operating system being installed—knows how to connect to the internet and reach Apple’s servers.

Start up your Mac from a shut down state or restart it, then immediately hold down Command-R. The Mac should recognize that there’s no macOS Recovery partition installed, show a spinning globe. You should then be prompted to connect to a Wi-Fi network, and you enter a password.

At this point, the Mac should start to download the recovery files from the internet and show a status bar. When complete, it should reinstall macOS Recovery and reinstall macOS on the main partition. (If your main macOS partition had system files become damaged or missing, your other files will remain intact, as this reinstallation only installs and replaces system files and apps.)

Command-R should reinstall the latest version of macOS that you had previously installed on this computer. However, you have other keystroke options depending on which version was previously installed.

Apple changed the start keys with macOS Sierra version 10.12.4. If you have ever installed that version on your Mac, no matter what version (or no version) is currently installed, you have these options.

  • Command-Option-R: Upgrade to the latest version of macOS that works on your Mac, which may not be the very latest release of macOS for older Macs.
  • Command-Shift-Option-R: Reinstall the version of macOS that your Mac shipped with.

With older versions of macOS:

  • Command-Option-R: Reinstalls the version of macOS that your Mac shipped with.

This Mac 911 article is in response to a question submitted by Macworld reader Luke.

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We’ve compiled a list of the questions we get asked most frequently along with answers and links to columns: read our super FAQ to see if your question is covered. If not, we’re always looking for new problems to solve! Email yours to mac911@macworld.com including screen captures as appropriate, and whether you want your full name used. Every question won’t be answered, we don’t reply to email, and we cannot provide direct troubleshooting advice.

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