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Though many people will disagree, installing an operating system like macOS isn't such a daunting task. If you're willing to follow the prescribed steps, you can do it even without having the expertise of a systems administrator. What makes it confusing is that there are usually several ways to clean install, re-install or upgrade macOS. Each type of installation requires a slightly different approach. In this article, we'll outline one of the simplest ways to clean install macOS Mojave from a USB flash drive. It's split up into four parts. Read each one carefully and make sure you understand what to do.
DMG is the format that Apple now uses for packaging software as a disk image. It's somewhat similar in function to ISO for Windows environments, but there are many differences as well. The one thing they can both do is to be burned as bootable media so an OS can be installed from a portable storage medium like a pen drive.
To download a macOS DMG file, you'll need to go to the Mac App Store and look at your Purchased section. If you already have it installed on that machine, it will appear there. You can also search for a particular version in the store. Make sure that once you download the file, it doesn't automatically start the installation. If it does, quit the process. You need the installation files, which will be deleted if the OS is installed.
This step requires some care because you can't create bootable media by just copying a DMG to a USB stick. You will need a disk authoring software that can write the DMG file with all relevant boot information to make it bootable. If you cannot boot from the drive you create in this step, you can't proceed with the installation. You can use the third-party apps to burn DMG to USB and follow the steps shown below:
Step 1: Get the DMG file from the Mac App Store.
Step 2: Install and launch DMG to USB burning utility such as UUByte DMG Editor, and insert a USB drive with at least 12GB of space (for macOS 10.14 Mojave; some require up to 16GB.) Since the drive will be formatted for the macOS installation, make sure you back up any important information that's already stored there.
Note: Your USB may need to be formatted with Disk Utility before it can be used to create bootable media. To do this, go to your USB drive within Disk Utility and click on the button or tab that says Erase. Now fill out Name, Format and Scheme fields, click Erase and Done. The format should be set to Mac OS Extended (journaled) and the scheme, if required, should be GUID Partition Map.
Step 3: Import the macOS installer and click the Burn function after selecting the appropriate USB drive.
Step 4: You may need to specify certain parameters such as burn speed, but in most applications, you can leave the default values as they are.
What you now have is a bootable USB drive containing the macOS installation files in the DMG format. The next step is to boot your Mac from this installer, and there's a special way to do that.
You can now insert your USB drive into the Mac you want to install macOS on. Restart the Mac, but when you hear the startup chime, hold down the Option (alt) key on your Mac until you see the Startup Manager. Several drives will be displayed, but only the ones that have bootable media installed. Pick your USB drive using a double-click with the mouse pointer or by using the arrow keys and Return (enter) on a keyboard. Now the Mac is booting from external USB.
The process of installation has now begun. Let's go through the final steps to install macOS from USB.
The last part of the installation process is simple. Just choose a language when prompted, and follow the instructions shown on screen as macOS Mojave is installed. You will need to first choose the right OS version and select Reinstall a New Copy of macOS. Click on Continue, and then on Continue again when the installer opens, and click Install to complete the process.
This is one of the easiest ways to install macOS from a USB. You don't require any experience and you don't need any additional tools. The key things to be careful about are the creation of the bootable USB, formatting it properly and booting your computer from the media instead of from the regular installation files. If you can replicate the steps shown in this article, you'll be installing macOS like a pro in no time!
Sometimes when booting up a Mac, the screen will turn all white – the dreaded Mac white screen of death! It seems as though your Mac is broken, but there can be some simple ways to remedy the situation without visiting an Apple Store or buying a new computer.
In this article, we'll tell you why Mac white screen on startup may not be a big deal, what the MacBook white screen of death means, and how to solve it when your Mac boots to white screen.
When you see the Mac or MacBook Pro white screen of death, it's indicative something is really wrong. Your Mac is totally unusable, and you're left waiting looking at a Mac or MacBook Pro white screen with no logo or anything telling you it's working properly.
Often, this occurs after an operating system update, which you may not have even been aware occurred if you have automatic updates on. The MacBook Pro white screen can also pop up when there are incompatible drivers on your Mac, or if an application has issues while upgrading. All told, the white screen of death means your Mac can’t figure out what to do next because a process is still working, and your computer wants it to finish.
So you’re asking yourself “how do I fix the white screen of death on my Mac?” We’ve got five methods that should solve the issue for you:
The cause of your Mac’s white screen issues may not be your Mac at all! It’s often a peripheral device or drive attached that’s somehow causing complications for your Mac. This can occur when your Mac updates; if an external drive is installed, it can confuse the Mac when it’s trying to spin up after an update.
Other items, like printers, have drivers that may be causing issues. The first thing you should do if you see a white screen on your Mac is unplug everything from it except the power source, then power your Mac down. Wait a few moments, then reboot your Mac.
If it boots normally, you know it was a peripheral device or drive causing issues. Plug them back in one by one to see if you can identify which was causing issues.
The white screen issue can also be caused by peripherals, apps, or your system updating while your MacBook runs out of power. This is why an app like Endurance is so critical; it keeps tabs on your battery, and lets you go into low power mode whenever you like.
Endurance also allows you more control over low power mode for Mac, giving you options for throttling your CPU down, lowering the lights on your screen, and killing background apps that are taking up too much energy.
Safe Mode can be a lifesaver. Before we go any further, here’s how to boot into Safe Mode on you Mac:
The goal of Safe Mode is to get your Mac to actually power on. Safe Mode essentially blocks any outside forces,like printers or drivers, from interrupting your startup process. Safe Mode also sidesteps your system cache, which can fill up with unnecessary files over time and feed you the white screen of death.
Once your Mac is booted up, let CleanMyMac X take over. It can tidy up your Mac better than any other app on the market, and is incredibly simple to use.
CleanMyMac X has a Smart Scan feature that quickly cleans up your Mac. It also has other modules for malware identification and removal, privacy settings, speed optimization, routine maintenance, and it can handle updating or deleting apps.
The Maintenance module scrubs your Mac thoroughly, getting rid of weird, unwanted files and folders and resetting your Mac’s settings. So often, a setting is altered or destroyed, and it causes issues. CleanMyMac X fixes it for good.
Settings can be to blame for your Mac’s white screen of death – and those settings live in the PRAM/NVRAM partition of your Mac’s memory. PRAM/NVRAM is a small section of memory set aside for settings your Mac needs to access quickly, often storing settings for startup services and apps. If one of those apps was corrupted or interrupted during an update, it’s reasonable to think its settings stored in PRAM/NVRAM could have been altered as well.
Here’s how to reset the PRAM/NVRAM on your Mac:
Here’s another great tip to solve the white screen of death: your Mac may actually tell you it’s going to happen. When your Mac has trouble with settings, apps, or files, it can cause the CPU to work harder, and the fans may kick on. And you may not think anything of it – but you should. This is where iStat Menus comes in handy.
iStat Menus lives in your Mac’s menu bar and watches the system like a hawk. It monitors CPU usage, network reliability, memory use, which apps are using the most resources, how your Mac’s CPU load balance is handled, and battery life. It even tells you what the weather is like outside!
At a glance, you’ll get all the data you need, but you can also hover over sections of the dropdown to get even more information – and there are even sub-menus in those menus! All told, iStat Menus is as close as you can get to having your Mac tell you in real time what is going on with it, and when it may be at risk of failing you.
Rebooting your Mac into Disk Utility can help you repair disks, but don’t default to this option if you’re getting the white screen of death. It can take quite a while!
Here’s how it’s done:
Disk Utility can’t always repair a disk, but it can tell you if a disk is prime to fail. If it does, you’ll unfortunately need to replace that disk’s hardware, which may be expensive.
The white screen of death can also mean a loss of files, but don’t worry! Disk Drill has you covered.
Disk Drill for Mac is an excellent tool for recovering deleted files due to data corruption, or disk utility errors. It supports all popular document formats, too, so you never have to question if a file type will be lost forever. Disk Drill can scan an entire drive, or a particular folder, allowing you to dig as deep as you like to recover files.
Finally, reinstalling macOS will almost always fix your white screen of death issue (unless the disk is corrupted). This won’t affect your files, apps, or other settings – it just reinstalls macOS. And if you want in on the latest build, here’s how to download and install macOS 11 Big Sur to your Mac.
Here’s how to reinstall the most current version of macOS for your Mac:
The white screen of death isn’t always as scary as it seems, but being proactive about the health of your Mac is always a great idea.
The apps mentioned here today – Endurance, iStat Menus, Disk Drill, and CleanMyMac X – are all available for free as part of a seven day trial of Setapp, an incredible suite of productivity apps for you Mac. Along with these four amazing apps, you’ll get unlimited access to the full Setapp suite of nearly 200 native macOS apps!
When the trial ends, retaining access to Setapp is only $9.99 per month, so why wait any longer? Give Setapp a try today!