Oct 25, 2019 Terminal Command Date Install 10.12.6 “date” command string, where date is in the mmddHHMMyy format for 1223: so enter in Terminal: date Quit Terminal. Proceed with installing macOS Sierra. I tested this to install Sierra on a external drive and it worked. If the result of the du command mentioned in the first comment is not around 5.6G, and only in the megabyte range, then you have the Installer Stub version and will need to download the full installer, which can be done on the specific version stated in the fist link. 'To download macOS Mojave or High Sierra for this purpose, download from a.
Have you ever tried updating to macOS Mojave, and then the installer returns with the message “An error occurred installing macOS” after running for a few minutes?
Today I’ll try to install Haskell on one of my macOS computers — the old High Sierra. Note you need to be a registered Apple developer to install Command Line Tools. Follow the instructions on. As the prerequisite of being able to create the macOS start up disk is to have a version of macOS available on your Mac. So you do that by going through the Mac App Store and downloading the app, but choosing not to install it until you have created this bootable USB installer that you want.
In another case, you might find that your MacBook suddenly becomes unresponsive after installing Mojave, taking so much time performing otherwise simple tasks. The show ends with the spinning beach ball of death appearing, staying for a few minutes.
Know that you’re not alone – the macOS Mojave install error has happened to a number of users, and it doesn’t take a lot for them to realize that the problem is likely related to the OSInstallerSetup and the whole process of migrating to Mojave in general. This article aims to be your quick guide to navigate this problem and address it in no time.
A Quick Reminder Before Troubleshooting
The macOS Mojave install error has been identified as a hardware failure in some instances, given the user’s inability to reinstall the operating system despite following the reinstall procedure correctly. Some users, for example, have received this mac error message while attempting to reinstall: “com.apple.OSInstallerSetup.error error 702.”
Below are some quick steps you can follow to solve this issue. Before going further, however, make sure that your computer is in generally good shape. A reliable third-party tool such as Outbyte MacRepair can scan it for all types of junk, optimize your RAM, and eliminate space hogs safely in order to help you proceed with the troubleshooting efficiently.
Ways to Fix the macOS Mojave Install Error
Let’s get to work and try the following steps to address the problem:
Install Mojave Using a New User
To do this, disconnect any external device from your Mac computer, such as audio devices, an external hard drive, and other peripherals. Next, try to install the software using a new user. Here are steps to create a new account for testing:
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- Choose Apple menu > System Preferences > Users & Groups.
- Click the lock icon, and then enter an administrator name and password.
- Click the + (Add button) found below the list of users.
- Complete the fields for a Standard or Administrator account.
- Click Create Account or OK.
- Log out of your existing account and log in with the new one. Do this by choosing Apple menu > Log out.
- Once at the login window, log in with the new account’s name and password. If you’re prompted to sign in using an iCloud account or Apple ID, skip that step.
Once done, delete the installer file and then re-download it from the Mac Store.
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If the issue still happens while you’re in the new account, then that means there’s something actually going on. At this point you can try the succeeding steps.
Check Your Software Version
Are you sure that your software is up to date? If you’ve already upgraded to Mojave, keep it up to date by following these steps:
- Choose Apple menu > System Preferences. Click Software Update to check for updates.
- If new updates are available, click Update now to install them. Choose More info to find out details about every update and select specific ones to install.
If your Mac is up to date according to Software Update, then that means all macOS apps are also up to date, including Safari, Books, iTunes, Messages, Calendar, Mail, FaceTime, and Photos.
You can also get updates for earlier macOS version such as High Sierra, Sierra, and El Capitan by following these steps:
- Open the App Store app.
- Click Updates located in the App Store toolbar.
- Using the Update buttons, download and install any updates listed.
Use Safe Mode
It’s also worth trying the Safe Mode option to resolve the issue. Best mac apps online. Also known as safe boot, it’s a way of initiating your Mac in a way that certain checks are done and the software is barred from automatically loading or opening. It can verify your startup disk and try to repair directory issues, as well as delete font cashes, kernel cache, and other system cache files.
Follow these steps to start up in safe mode:
Macos Mojave Iso
- Start or restart your Mac. Afterwards, immediately press and hold the Shift key. At this point, the Apple logo should appear.
- Release the Shift key once you see the login window. For those whose startup disk is encrypted with FileVault, the user might be asked to log in twice.
- Leave in safe mode by restarting your Mac – no need to press any keys during startup.
Now, try to install the macOS update in safe mode.
Check for Hardware Issues
Apple Diagnostics assists you testing your machine for hardware issues. Once you have isolated the issue as a possible hardware problem, you can follow these steps:
- Disconnect all external devices except your mouse, keyboard, display, Ethernet connection, and AC power connection.
- Keep your Mac on a hard, flat, and stable surface that has proper ventilation.
- Shut down your computer.
- Turn it one, and then immediately press and Hold the D key on the keyboard. Keep doing it until a screen asking you to choose your language appears.
- The check lasts up to three minutes. If there is an issue found, Apple Diagnostics suggests solutions as well as offers references codes, which you should note before proceeding.
- Choose from the following options:
- Repeat the test by clicking Run the test again or pressing Command-R.
- Click Get started or press Command-G for further information.
- Restart your Mac by clicking Restart or pressing R.
- Click Shut down or press S to shut it down.
Check for Software Issues
Is it a software issue bugging your system and resulting in the macOS Mojave install error and subsequent problems with using your computer? Follow the instructions on this Apple Support page to address the issue depending on whether it occurs in just one app, in different apps, or in Mac OS X.
Clean-Install macOS Mojave
Here are the steps to follow to create a bootable Mojave installer:
![Install Install](/uploads/1/3/4/2/134260007/838915644.png)
- Download the new macOS from the App Store.
- Connect a USB drive to your Mac.
- Go to Disk Utility.
- Click the Erase tab, and select Mac OS Extended (Journaled) in the format tab.
- Give your USB a name. Click Erase.
- Once done, click Done and close Disk Utility.
- Next, launch Terminal once the USB is formatted.
- Make sure the USB is connected. Write the commands below in Terminal, where [YOUR DRIVE NAME] is the name you provided the installer drive:
sudo /Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia –volume /Volumes/[YOUR DRIVE NAME] –applicationpath /Applications/Install macOS Mojave.app
- Hit Return. Enter your admin password and the bootable installer will be the created on the USB.
- Once you see Done in the Terminal window, quit Terminal.
It’s time to clean-install macOS Mojave on your Mac. Before proceeding, make sure to back up your Mac to keep your important files. Continue with these steps:
- Erase your main drive by going to System Preferences.
- Сlick Startup disk. Select the installer you just created.
- Restart your Mac and boot into recovery mode by holding down Command-R.
- Take your bootable USB and connect it to your computer.
- When the macOS Utilities screen appears, reinstall a new copy of macOS.
- Click Continue, then click Continue again once the next window shows up.
- Agree to the terms and conditions.
- Next, choose your Mac’s internal drive.
- Click Install.
- Wait for macOS Mojave to install and your machine to restart.
Final Notes
Install Macos Mojave On Virtualbox
If you’ve tried the solutions above but the macOS Mojave install error persists, perhaps it’s time to contact Apple Support or seek professional service. Follow the steps here. Make sure to also do the steps above correctly to prevent new problems from popping up.
Have you encountered this error before? What solved the issue? Let us know in the comments!
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See more information about Outbyte and uninstall instructions. Please review EULA and Privacy Policy.
- General Suggestions
- If you encrypt your boot drive with FileVault it will be necessary install additional drivers from the latest Clover release here. Download the .pkg version of the installer, select Customize and then Clover for UEFI booting only. The necessary drivers are found under UEFI Drivers > FileVault 2 UEFI Drivers.
- Keep your installation USB on hand. After installing macOS system updates it is sometimes necessary to boot the system with the USB and re-install kexts to get everything working properly again.
- Use Clover Configurator if you need to mount the EFI partition
- If a kernel panic occurs, boot from the installation USB, select the installation drive, hit the space bar and select Safe Mode (-x) to successfully boot and make necessary changes.
- If Bluetooth is not available after waking from sleep, toggle the wireless radio switch on the right side of the computer off and then on again. To prevent this, the hibernatemode setting can be changed to mode 0 by entering the following command in Applications > Utilities > Terminal:
- If System Information indicates no TRIM Support for your SSD, update your drive with the latest firmware and then enable TRIM by entering the following command in Applications > Utilities > Terminal:
- Touchpad and TrackPoint
- Turn off the touchpad with the <PrtSc> key if you will only be using the TrackPoint – this will prevent an issue with unintentional double-clicks with the TrackPoint buttons.
- Special Keys
- <PrtSc> toggles the touchpad on and off
- <Fn>+<F8> and <Fn>+<F9> keys adjust screen brightness
- <Insert> will eject the CD/DVD drive
- The <Windows> key functions as the macOS <Option> key
- <Alt> functions as the macOS <Command> key
- <Fn>+<F4> shuts down the computer
- Video / Displays
- If an external monitor is not automatically detected, open System Preferences > Displays and press the Option key (the <Windows> key on the T430s keyboard). This will show a Detect Displays button which should make the external monitor show up immediately.
- If Night Shift does not show up in the Displays preferences:
- Download and run Hackintool
- Select the Displays icon at top and note the Vendor ID and Product ID
- Launch Clover Configurator and open the Clover config.plist on your EFI partition
- Select the Graphics section
- Check the box next to Inject EDID
- Input the VendorID and ProductID shown in Hackintool
- Save your config.plist and restart the computer