Right now I am using her newer MacBook Air(Mid 2017) to install El Capitan onto an SSD. With any luck, you may be able to either correct the issue, allowing you to finish the installation, or prevent the problem from occurring in the first place.This is for a Mid-2007 iMac my girlfriend wants to use. In this guide, we will look at some of the installation problems that tend to occur with new releases of the Mac operating system. With a 2011 iMac with say 8GB of memory go for the latest version, El. 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.The first step is to Download version Soundflower 1.6.6b. Through Mac OS X Utilities I always get Item temporarily unavailable (I.Uninstall Soundflower via Package. After I erased the old HD and was trying to install the new OS (Lion, in this case), I was also met with the repeating This item is temporarily unavailable.Please try again later message.Installation Issues Commonly Seen with macOSTo create bootable USB installer for Mac to Install Mac OS X El Capitan on.Having a Time Machine backup or a clone of your current system can be a lifesaver. Some of the installation issues we’re going to mention can cause loss of data. Doing so executes the script and removes the existing driver.Before we get too far along, I want to point out the obvious: don’t install a new version of the Mac operating system without having a current backup. Press the play button at the top of the window. Open up the downloaded DMG file, and run the script highlighted below.
Normally, when you perform a clean install and erase the startup drive, you do so while running the macOS installer from another boot drive, perhaps a USB flash drive that you have cloned the installer to.If the installer has a problem, you may find yourself forced to reboot and use the Recovery Partition or the Internet Recovery System built into your Mac. Try using Disk Utility’s First Aid capabilities to test and repair your disk, as outlined in First Aid: Verify and Repair HFS+, APFS Drives with Disk Utility.Could Not Find Installation Information for This MachineYou may run across this error message when you’re performing a clean install of the Mac OS and have erased the startup drive. This is a good reason to download the official copy from the Mac App Store or join the free public beta program if you want to try out a new version of the Mac OS early.Other possible causes include a damaged boot drive. The error message seems to occur most often when the Mac installer is downloaded from a third-party site. It may seem odd but the usual cause is a corrupt installer, and simply deleting the installer app and downloading a new copy will likely fix the issue. Who has resolved the Mac OS X Lion issue This item is temporarily unavailableYou can find a large number of external enclosures, drives, and SSDs, as well as a portable and easily-carried-with-you Envoy Pro EX high-performance USB 3 or Thunderbolt bus-powered SSD storage.With the backup recommendation out of the way, let’s get started with the error messages.Could Not Write Installation Information to DiskThis message usually shows up as a sheet that drops down from the macOS or OS X installer shortly after you start the install process. This Item Is Temporarily Unavailable Os X El Capitan 2017 Password Or SelectYou can check the compatibility lists at the links below. In some cases, you won’t be able to upgrade because Apple has dropped support for your older Mac. Start by checking to see if your Mac is actually compatible with a newer version of the OS. Restart your Mac while holding down the Command + R keys to enter recovery.If you don’t automatically connect to your network, you’ll be asked to either supply the Wi-Fi password or select another method of connecting to your network.If you connect by Wi-Fi, make sure it’s selected, and then supply the password.You should now be able to continue the recovery process and reinstall the operating system.Computer is Incompatible with the Operating System You Are Attempting to InstallThis error message is an oldie, but could be seen by someone upgrading from OS X Yosemite and earlier to OS X El Capitan or later. Instead of telling you your Wi-Fi or Ethernet network isn’t working, the installer displays the above message.The fix is to make sure you’re connected to your Ethernet network, or have your Wi-Fi password on hand. Can you upgrade microsoft office 2011 to 2016 for macBe sure to verify that the time zone is also correct. Make sure the date and time are set correctly. Launch System Preferences by selecting the System Preferences icon in the Dock, or by selecting System Preferences from the Apple menu. A rather obscure issue with the Date & Time preferences can prevent installation of a new version of the macOS. You can use the same links listed above to check compatibility.Once you’re sure your Mac is on the compatibility list, it’s time to check your time, or more specifically, your Mac’s time and date settings. Just as before, start by making sure your Mac is compatible with the macOS version you’re installing. First Aid: Run a First Aid repair of your startup drive (assuming the startup drive is the target of your installation). While not tied to a specific installation process, these tricks have been known to correct an underlying issue and get a Mac user going again: The instructions for using Terminal to make time changes are available in: Tech Tip: ‘An Error Occurred While Preparing the Installation’ Fix.There are a number of generally helpful troubleshooting tips that can get a wayward installation back on track. You can find instructions for using the Recovery system in the article: Rocket Yard Guide: Everything You Need to Know About OS X Recovery. If you have a reliable Internet connection, it’s best to use the option to “Set date and time automatically.” Use the dropdown menu to select a local Apple timeserver.If you’re not able to access the System Preferences to fix the time and date issue, you can do so from the Recovery system by using the Terminal app, which is available from the Recovery menu. Make any changes needed to ensure the settings are correct. When this happens, the installation won’t be able to complete because it will attempt to boot from the wrong drive. Startup Disk settings: Once in a while, the Mac’s startup disk can be set incorrectly because of an installation error. It will also disable most third-party extensions that may be interfering with the installation process: Safe Mode & Single-User Mode: What They Are, How to Use Them. Safe Mode will perform some basic system checks, including testing your Mac’s hardware, startup disk, and system software. Safe Mode: You should also consider starting up in Safe Mode. Resetting them to their default states can sometimes correct issues you may be having. Sometimes these settings can get out of whack, and have unusual effects on a system installation, not to mention causing your Mac to be a bit goofy in general. Reset NVRAM and SMC: The NVRAM (early Macs used PRAM), combined with the SMC, holds a great deal of the Mac’s system settings. Taming Common Demons That Can ‘Possess’ Your Mac How to Fix and Avoid the Most Common Mac Error Messages If not, it may be time to restore your Mac’s data from your backup and make a fresh start at installing your new or updated OS.— This post was originally published on September 4, 2018 You, nor anyone else, should do anything so drastic as erasing the startup drive without first backing it up. I’d call you a fool for being so careless, but you’re probably already doing that, so it would be redundant. Updated: Several Apple Services Experiencing Extended DowntimeDid you back up your system before you erased your drive? If not, you’re up the proverbial creek without a paddle. How to Fix and Avoid the Most Common Mac Error Messages: Part 2 You can go back quite a ways if you want to bypass the damage that caused you to want to restore the system in the first place. You don’t have to use the latest version of your old system with Time Machine. You can restore your system with that, booting in Recovery Mode, just as you did when you tried to restore your system over the internet. Best to make a copy of the installer, or back up your system while the installer is in your Applications folder. You can quit the installer and run it later if you like. It will download in the Applications folder and will automatically launch.
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