This guide will walk you through upgrading your Mac's Operating System to Mojave, which was released on September 24th, 2018. In general, if your Mac was made after mid 2012, it should be compatible. We can confirm using the following steps: Choose Apple menu About This Mac. Check the OS version. I have tried several times to upgrade from Sierra to High Sierra and now to Mojave but I have always failed. When the operation is almost completed and I have on the black screen a white apple and progress bar almost full or full the system stops and I have to shut down and reinstall the old system. This guide will walk you through upgrading your Mac's Operating System to Mojave, which was released on September 24th, 2018. In general, if your Mac was made after mid 2012, it should be compatible. We can confirm using the following steps: Choose Apple menu About This Mac. Check the OS version. MacOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. I am running Sierra on my 1TB Fusion Drive late 2012 iMac. I would like to update the OS from Sierra to Catalina. (I am aware that Catalina has issues but I would like to try it regardless) Just wondering if it would be wise to make a clone of my Sierra drive, then update to Mojave, then make a clone of Mojave and then update to Catalina.

Yosemite - OS 10.10.x El Capitan - OS 10.11 Sierra - OS 10.12 High Sierra - OS 10.13 Third, you need to be concerned about any third party software you are using, and most likely, will need either to upgrade some/most/all of them to be compatible with the OS you want to move to, or possibly some of them might not work at all. If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.

  1. MacOS High Sierra is a seasoned, robust, and straightforward-to-use operating system developed for your MacBook. With this OS, some of the novel features have been added for the desktop users. MacOS High Sierra might not offer diverse underlying differences to the user experience, but there are enough quality changes and they would certainly boost the performance of your Mac.
  2. The Mac OS Sierra has a major upgrade in the Gatekeeper user interface by adding two new security features that make the usage of your system much safer and save you from data theft. There is an Anywhere option in the system preference tab that allows the user to execute software programs without getting permission to run the same.
  3. At the time of writing, the current version of macOS is Catalina (10.15.x), and the two previous versions are Mojave (10.14.6) and macOS High Sierra (10.13.6). Keep in mind that even though these two older macOS versions still receive security updates, not all known vulnerabilities are addressed.
11 8 likes 17,988 views Last modified Feb 2, 2021 4:31 PM

This is a series of tips that cover Mac OS X client edition. Server forums cover Mac OS X server on the community.

Here is the series of tips for related Macs. 10.6,10.7, 10.8, 10.9, 10.10,10.11,

10.12 ,10.13, 10.14 Mojave, 10.15 Catalina , 11.0 Big Sur.

See special note about resetting the SMC during updates and upgrades, later in the tip.

is an article I wrote that everyone updating their Mac should read. No update should be ventured into with operating systems or software without first ensuring your data is backed up in two separate places. Slowing down of your Mac should not lead you to assume an update will fix everything. First isolate why your Mac is slowing down or crashing before installing anything new.

Apple includes many full upgrade installer links on

Note: APFS came about with High Sierra, and Mojave continues the practice of auto-reformatting drives into APFS that are solid state like flash drives from HFS Journaled. If you need to downgrade to an older system than High Sierra, you will need to reformat the drive again, or leave a partition with the old formatting available.

Apple released for 10.14.6 users, 2020-003 Mojave security update. If running an earlier version of 10.14, run the 10.14.6 Combo update first.

Apple recommends you have these Macs according to:

  • MacBook (Early 2015 or newer) [model identifier 8,1 or later]
  • MacBook Air (Mid 2012 or newer) [model identifier 5,1 or later]
  • MacBook Pro (Mid 2012 or newer) [model identifier 9,1 or later]
  • Mac mini (Late 2012 or newer) [model identifier 6,1 or later]
  • iMac (Late 2012 or newer) [model identifier 12,1 or later]
  • Mac Pro (Late 2013; Mid 2010 and Mid 2012 models with recommended Metal-capable graphics cards) [model identifier 5,1 or later]

Should You Upgrade From High Sierra To Mojave

bracketed items in quotes were added for additional identification purposes. Your Apple menu -> About This Mac -> System Report or System Profiler gives you the model identifier.

All of the Macs that are older than 10.11, need to be updated to 10.11 first before installing Mojave.

The oldest MacBook Air, Mac mini, and iMac which can upgrade to Mojave shipped with 10.8, Mountain Lion.

The oldest MacBook Pro which can upgrade to Mojave shipped with 10.7, Lion.

The oldest MacBook had Mac OS X 10.10 installed.

The oldest Mac Pro on the list above with the compatible graphics cards, had 10.6 originally installed, and is the only Mac that shipped with 10.6 that can install Mojave. Before upgrading to 10.7 or later, read this tip as Apple has not reintroduced a series of software that made older Mac compatible software compatible with Intel Macs since 10.6.8's release.

Apple released Mojave on September 24, 2018. Reports from:

earlier than that date were made with pre-release Mojave versions and can not be relied upon.

September 30, 2018 driver additions from third party update pages:

HP, and Samsung (HP has become the download site for at least some Mojave Samsung printers, if you have Samsung see if any are Catalina compatible)

Mac Os Upgrade From High Sierra To Mojave Patcher


10.14.3 was released January 22, 2019. Note, some users are reporting 10.14.3 will not successfully apply as an update without an SMC reset as described how to do in this link:

Frequently both updates and upgrades will require multiple reboots to successfully apply. Do NOT become impatient if you find the screen go blank during the update or upgrade process. If you press the power button to shut it down while it is rebooting for the update or upgrade, it may quit the process, and leave you stuck.

Use the macOS Mojave forum for operating system specific questions of other end users such as yourself.


are directions for creating a separate partition that will allow you to dual boot into an older operating system

if you find something not compatible with the current. Once you install the older operating system, you can use the Startup manager to dual boot to the older system.

You can't install Mojave from the Finder, unless you are running 10.13.6 or earlier.

Update High Sierra To Mojave Not Catalina

Update os from sierra to mojave

The direct download link for Mojave is:

Mac Os Upgrade From High Sierra To Mojave Az

Note: some people have had trouble downloading the latest Mojave links. has been found to be a better web browser than some if you run into issues and is known to work on Mac OS X 10.10 and later.

Mac Os Upgrade From High Sierra To Mojave Dmg

Note: the 2020-004 security update for Mojave has a bug with the screen saver getting stuck. To repair delays in the screen saver, 'The workaround is to choose a non-picture screen saver such as Flurry, Message, etc.' (special thanks to community member dialabrain for this report.

Mac Os Upgrade From High Sierra To Mojave National Park

If your Mac is running macOS High Sierra (10.13), you may not be able to get new versions of certain apps to work. For instance, Lightroom and Photoshop's latest versions might not be compatible, which means you will need to upgrade to a higher version like macOS Mojave (10.14). This article shows you how to upgrade or do a clean install of macOS Mojave on a Mac currently running macOS High Sierra. Of course, this assumes that your Mac supports macOS Mojave.

If you're doing an upgrade, you can directly download and run Mojave installer app on your High Sierra system. The process is simpler than doing a clean install because you won't need an external USB drive for installation. The first method is explained below.

Warning: Not all Mac models are eligible for upgrading to macOS Mojave. Please check the hardware requirement first.

  • MacBook Pro (Mid 2012 or newer)
  • MacBook (Early 2015 or newer)
  • MacBook Air (Mid 2012 or newer)
  • Mac mini (Late 2012 or newer)
  • iMac (Late 2012 or newer)
  • iMac Pro (2017)
  • Mac Pro (Late 2013)

Method 1: Direct Upgrade from macOS High Sierra to macOS Mojave

Since the first release of macOS, Mac users can directly upgrade to a new version via macOS installer app, which you can get from App Store. This is the official way to upgrade macOS from old version to a new version.

Step 1: The first step whenever you install a new OS version is to take a back up of your data, so you can do that now via Time Machine on an external drive.

Step 2: Go to Mac App Store and search for 'Mojave'; alternatively, you can open this link provided by Apple. (It is recommended to use Safari browser if you're using the link.)

Step 3: Mojave installer app is pretty big and you have to wait some time to fully download it from Mac App Store.

Step 4: When the download is finished, the app (called Install macOS Mojave) will be open automatically. Now, follow the instructions on your screen to complete the installation.


  • Simple enough and no extra step.
  • Less error and no data loss.
  • Completely free of charge.


  • Can not find macOS Mojave app in Mac App Store.
  • May download a damaged copy of macOS Mojave app .
  • Your Mac should be working normally.

This method is much easier so most people use this way to upgrade to a higher version of macOS once that is no longer the latest version. However, it is not always working as expected and you may see error like the following one:

If you can not get in your Mac or you prefer to do a clean install, then the direct upgrade is not suitable. You need to create a bootable macOS Mojave USB drive first and use it to install Mojave on your Mac. Hence, this is an indirect way to upgrade to Mojave from High Serria. We will share more details about this method in next section.

Method 2: Upgrade from High Serria to Mojave via Clean Install (Bootable USB)

A clean install ensures that your hard drive is wiped clean and formatted before installing a new version of macOS, which means your apps and data will all be gone. Sometimes, that's the desired result, especially when your Mac is running slowly because of heavy data and you want to refresh it along with the upgrade to the latest or at least a higher macOS version. If you need to do a backup, do that now using Time Machine and an external drive. You will also need an additional external drive for the installer.

Part 1: Create macOS Mojave Bootable USB in Easy Way

There are two different approaches to create macOS bootable USB. The simple way is via third-party apps, which usally involves less steps and has a GUI. The other way is by using a set of combined text commands in Terminal app. We will go with the easy one first.

Step 1: Get a copy of macOS Mojave DMG file.

  • Download Link 1:
  • Download link 2:

Step 2: Plug in an USB drive to your computer (PC or Mac) and install UUByte DMG Editor on it.

Step 3: Open UUByte DMG Editor software and click the 'Next' icon at the right side of Burn menu. At this time, you will be redirected to a new window.

Step 4: Click the 'Browse' button to locate the macOS Mojave DMG file you downloaded previously. And choose the right USB drive in second column.

Step 5: When the above steps are completed, hit the 'Burn' button at bottom to start creating macOS Mojave USB installer from DMG file. Wait about 5-10 minutes.

You will see a success message at the end of process and this means a bootable USB installer is ready! You can now use it to install macOS Mojave on your Mac and start the upgrade process.

Bonus: Create Bootable Mojave USB Installer on Mac via Commands

You can create any macOS bootable USB installer on a PC or Mac with UUByte DMG Editor but text command is only available on Mac. This means you should get a working Mac in order to apply this trick.

First, download macOS Mojave app from App Store. Quit the app when it is launched after download. Now, open Terminal and type in 'sudo' (without quotes) and a space, and leave it like that. Now, go to Finder and right-click on the installer file to select Show Package Contents.

Open Terminal and type in 'sudo' (without quotes) and a space, and leave it like that. Now, go to Finder and right-click on the installer file to select Show Package Contents.

Locate the file called createmediainstaller inside the Resources subfolder in the main Contents folder. Keep your Terminal window visible and drag this file into Terminal. You'll see that a location has been added after your sudo command.

Type --volume and then a space, and leave it for now. Back in Finder, go to /Volumes using the GoGo to Folder option. You can now connect your USB drive to your Mac. From Finder, drag your device's icon into Terminal again.

Hit Enter and then enter your password for the Mac when prompted to do so. When you see the prompt on Terminal asking you if you want to continue, type Y and hit Enter.

Update Os From Sierra To Mojave

The USB installer will be created in a few moments. Now that you have the installer ready, you can proceed to the installation part.

Part 2: How to Install macOS Mojave on Mac from Bootable USB

Step 1: Restart your Mac and hold the Option key down when you hear the startup chime.

Step 2: Select Install macOS Mojave in the list you see on your screen. You may need to use the arrow keys and the Enter button if you can't use the mouse.

Step 3: When the Utility window appears, select Disk Utility. Then, choose your main hard drive and click Erase.

How Do I Update From Sierra To Mojave

Step 4: When the formatting is done, go back to the Utility window and choose Reinstall macOS.Follow the instructions on your screen to install macOS Mojave.

You have successfully done a clean install of macOS Mojave from a USB installer on a machine running macOS High Sierra. Be sure you follow all the instructions in this article, especially where the command line inputs in Terminal are concerned.


  • Universal applicable.
  • Work on both PC and Mac.
  • Can be used on multiple Macs once bootable USB being made.
  • No need to download macOS install app when it is not available.

How To Update From Sierra To Mojave


Update Mac From Sierra To Mojave

  • Has to install additional software or use text commands.
  • Require an external USB drive.
  • Installation may fail on unsupported Mac models.


In conclusion, you can upgrade from High Serria to Mojave in both direct and indirect way. It is up to you what kind of situation you are in. If you could find macOS Mojave app in Mac App Store, then it is recommended to finish the upgrade within the app. If not, then you can create a bootable macOS Mojave USB and use it to install macOS Mojave on your High Serria powered Mac.