Those who still rely on older Mac OS X operating systems, know these still are going strong. There are so many things you can do with past OS X — like Lion, Mavericks or Yosemite — each one of these operates flawlessly. So if you’re looking to give your Mac a fresh start with just a classic Mac OS X and nothing else, to clean install Mac OS from USB is the best option for you.
To clean install Mac OS from USB, there are three things you should do. First, you should clean up your Mac from the old baggage — system files that have piled up over time. Once it’s all cleaned up, the next you should do is backup your newly cleaned Mac. And finally, after doing a backup, you can clean install OS X of your choice from USB.
We’ve got the steps outlined below, so let’s get to it.
Step 1: Clean system junk on your current Mac OS X
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- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions. Learn more For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal.
- Step 3: At the bottom of the Font Book preview window you will see the option to Install the font. Click the button and the font will be installed on your Mac. Click the button and the font will.
- Installing Firefox on Mac. Visit the Firefox download page in any browser (for example, Safari). It will automatically detect the platform and language on your computer and recommend the best version of Firefox for you.
Whatever OS X you are currently on, system junk and outdated cache files are a potential source for software conflicts. Having cleaned them up, you may discover around 35 GB of newly created space previously taken by junk. What's more, old caches may interfere with your new Mac OS X installation, so this step is pretty essential.
Cleaning can be done either manually or using a dedicated app. If you don’t want to spend the next 20 minutes on repetitive clicking and typing, jump right to the automatic solution further down.
The manual way to remove old user caches:
- Click on a Finder window and choose “Go to Folder” in the Go menu.
- Type in ~/Library/Caches and click Enter to go open the folder.
- Go through each of the folders and remove their contents.
Note: Do not remove the folders themselves, just their insides.
Next off, do the same steps, but now replace.. Sketch 41.
~/Library/Caches with… /Library/Caches
Automatic solution for system junk cleanup
There are many nice apps that offer a quick Mac clean up. Among those, CleanMyMac 3 is our favorite as it looks most user-friendly of all. It scans your hard drive for old caches, broken apps, and app leftovers so you can remove all unwanted files in a minute or two. After all, a newly installed OS X feels better on a clean computer.
Download CleanMyMac and then follow the steps:
- Launch CleanMyMac 3.
- Click Scan.
- Click Remove.
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And you’re done. If you want to clean up more junk on your Mac, go through each of the modules located on the left panel of the app. It’ll help you clear out gigabytes of junk that you probably didn’t even realize were there. Once you’ve finished the cleanup, head to the next step.
Step 2: Back up your Mac
Before you begin to reinstall Mac OS from USB, you should back up your Mac. Note: If you don’t do this step, you will not be able to recover files, nor restore anything if something goes wrong. To back up your Mac:
- Open an app called Time Machine.
- Click “Select Disk.”
- Select where you wish to save your files (an external drive works best, Apple Time Capsule is a safe bet).
- Click “On” on the left-hand side of the screen to turn Time Machine on.
- On the right, under the name of the storage device, there are three lines that say, “Oldest backup,” “Latest backup,” and “Next backup.” Your backup should be scheduled within the next 5 minutes.
- Don’t want to wait? In the menu bar at the top of your screen, a few icons left of the Date & Time, click on the “arrow clock” icon and select “Back Up Now.”
Step 3: Installing Mac OS from USB
You will need 3 essential things:
- The OS X Installer (downloaded from the App Store)
- The backup of your old system
- Startup drive to install OS X on
Once it’s all prepared, it’s time to clean install OS X. But first, you need to create a bootable drive using a USB containing Mac OS X of your choice. Don’t know how? Then read on.
How to create a bootable USB flash drive
1. Connect your Mac to the USB flash drive. It should have at least 12 GB of available storage.
2. Open Terminal from the Utilities folder of your Applications folder.
3. Type or paste the following commands in Terminal:
Iswift 4 2008. Mavericks:
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Yosemite:
El Capitan:
4. Press Return.
5. Type your administrator password and press Return.
6. When prompted, type Y to confirm that you want to erase the volume and press Return. You'll see the progress as the bootable installer is created.
7. Quit Terminal when the process is finished.
How to install the OS from USB
1. Plug in your bootable USB drive and Restart your Mac while holding the Option key. Make sure to keep it pressed down!
2. When it restarts, you’ll have a few options. Choose your USB Installer.
3. Next, select the Disk Utility option.
4. In the window, at the top of the left bar, select your Mac’s Main Drive.
5. Next, to the First Aid button at the top, click the Erase button.
6. Now, near the center of the window, select the Format drop-down list and select “Mac OS X Extended (Journaled)” as the type.
7. Click Erase (this will erase your main drive) and allow time for the drive to format.
8. When it’s finished, close out DiskUtility and select “Install OS X” from the menu.
9. Select your main drive and install a new OS X on it.
Follow the installation prompts and enjoy your new operating system. And if you want your new OS works smoothly for a long time to come, use a great cleaning and maintenance tool we've mentioned above — CleanMyMac 3. The app will take care of your Mac, so you'll get the most out of your computer again. Try it now!
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Linux support for the Keyboard & Trackpad, the networking drivers, and the T2 security chip only just recently got merged into the mainline Linux Kernel. Acorn 6 3 2 0. I'm fairly sure you need at least kernel version 5.4+ to get some of these features working and I believe v5.6 may be necessary for T2 support. I don't recall which of the post v5.4 releases has T2 support.
Macbook Install From Usb
Currently you cannot easily install Linux onto an Apple computer which uses the T2 security chip because the Linux Kernel with the T2 support is not included in any of the currently released distributions as a default kernel. If you want to run Linux on this laptop, then you will most likely need to first install Linux to an older Mac or other UEFI booting PC and install the latest v5.6 kernel. I would suggest trying to boot this customized Linux boot disk externally to confirm you use the built-in keyboard, trackpad, and either WiFi or ethernet. Then clone the Linux install to the internal SSD (again you will need a boot disk with support for the T2 security chip).
I do not recommend dual booting this laptop with both macOS and Linux unless you have good backups and are prepared to perform a clean install or restore from backup since you will at some point most likely do something which will prevent either OS from booting and possibly risk losing access to all the data in one or both operating systems.
How To Uninstall On Macbook
You cannot disable the T2 chip as it is an integral part of the system. The most you can do is disable some of the security settings to allow a non-Apple OS to boot and to allow booting from an external drive.
Apr 9, 2020 5:20 PM