How to create a bootable installer for macOS

How to create a bootable installer for macOS. Most users prefer the bootable installer because it is easy to use, and in some cases, if they want to install it on Macbook immediately, they can do it comfortably.

USB flash is the cheapest source for installers for the mac operating system as compared to other removable devices. It can be installed at any place, and it consumes less space on the drive.

Using USB, you can quickly refresh and boot up the new version of the mac operating system in less time and get an outstanding experience.

After reading this, you can create a bootable installer for mac OS yourself without taking other help.

How to create a bootable installer for macOS

The memory size of the boot installer is almost From 12GB to 15GB, so for it, USB flash is the best option because it has the ability to store more data depending on its own storage capacity.

There are many points given below. By reading this, you can create a notable installer for the mac operating system.

Select a best USB Flash

select a best usb flash

Having a good quality USB is more important than a cheap one. Make sure that you are using Kingston, Sandisk, or PNY.

It is a tremendous USB flash brand in the whole world with good quality components.

TYPE-C port options are available in most models of Macbooks, so you need a flash that has a TYPE-C Port option and is ready to connect without distraction.

You need almost 12 GB or 16GB minimum memory for storing the latest version of  Mac OS.

All Steps to create a bootable installer for macOS using USB

all steps to create a bootable installer for macos using usb

  • To Plug

Plug in the USB flash with a memory of 12GB or according to the size of the memory of the installer. Then, To start the disk utility, you have to press the command and also the spacebar at the same time.

You should click on the drop view down for the upcoming step to close the minimize tab.

Choose show all devices from the options if you are using a high version of Sierra or later. Next, you will see the more external drive and others in the volume section.

  • Selecting the volume option

selecting the volume option

Click on the root drive shown on the sidebar, and the next step will not do any action before selecting the volume option.

After this, Clink on the erase, which is displayed on the screen, and select macOS extended as the format

  • Selecting the Partition map

Select GUID Partition Map for the scheme for installing the mac os. A drive is shown to you with the name untitled you can change the name of the driver by using a mac os installer or USB.

Now it is on you which is suitable for you. Then click on the erase button and wait for a few minutes to disk, make a drive, and set it up after this clink on.

Now, you can create the bootable installer for mac os. Open the terminal by using simply pressing Command + spacebar and then start typing Terminal.

You can see it in the folder. It takes time. Then copy the text that can relate to the version of the mac operating system into the terminal.

Make sure that you changed the name with untitled to y volume because it is important.

  • Making the password

making the password

When the option of the password appears on the screen, then you need to go back by tapping on it.

After this, your password will also be in front of you, then confirm that it’s yours, and right then click on the enter button.

After this, the terminal warning display is about the formation of the data, so make sure that you do not have remaining important data and that you follow all the information regarding the formatting.

If you want to continue the process, then click on Y and return back. The process can take some time. You’ll look at “Erasing Disk: 0%…20% and so on.

Next, it takes some minutes to move the installer files to your drive, and then the completion notification will occur when the copying becomes complete. Now the whole process is performed.


Creating an installer in a bootable device for MAC OS is best. Because if you want to refresh the OS and or install the new OS, that all become easy when you have an installer in USB flash.

So I discuss it because it is simple and can be used anywhere.

The complete steps are sorted one by one in number-wise form, which helps in every phase of installation. After reading this article, you become able to create a bootable installer for the mac operating system.

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