Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing. Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes and a gear icon labled Options.
Have you ever been faced with the need to install a new operating system on a crashed PC but realize that you don't have the installation disc? For most people, such a case is always discouraging and disheartening because they know that the only way to install a new OS is to use an installation disc. Actually, all you need is a USB with a good capacity and a utility like Rufus. Rufus is a free, portable open-source utility that you can use to create bootable USB flash drives. Rufus is small in size, but it surprisingly has everything you need as far as the above are concerned.
Rufus is primarily a Windows application and currently, it supports 64 or 32 bit Windows XP/7/8/10 only. This means that you can not use Rufus on the normal Mac computers. If you need to run Rufus on a Mac, then it will be imperative for the computer to have a dual boot Windows installed on Mac. However, this is not an easy task at all.
To those in the dark, this simply means that you will need to have a Windows Operating system installed in your Mac computer. However, if you didn't want to have two operating systems running on the same machine so that you can access Rufus, there are quite a number of alternatives you can use to achieve the same functionalities of Rufus on Mac.
UUByte ISO Editor is by far one of the best ISO toolkits for those who want a seamless process in creating, burning, extracting and editing ISO images. Unlike Rufus, it has both Windows and Mac versions so you don't have to worry about not having Rufus for Mac or the need to install two operating systems in your Mac.
This ISO editor can effortlessly burn ISO image to DVD, CD or USB which you can then go ahead and use as a bootable disc for new installation. The tool is also versatile enough to create an ISO archive from folders or external sources, in addition to extracting or mounting ISO files to Mac or Windows computers. With over 220,000 users worldwide, it is a clear winner among the ISO toolkits available in the market today.
How to burn ISO to USB on Mac using UUByte ISO Editor: Please download UUByte ISO Editor for Mac and install the app. Then drag and drop the app icon to Application folder so you can open the app from Launchpad. After that, insert a USB stick and click 'Burn' button at the first screen. Now import Windows ISO to the program and start burning ISO to USB by clicking 'Burn' button at the bottom of the Window. Finally, wait for 10 minutes to get the job done.
Universal Netboot Installer Unetbootin, is another cross-platform utility toolkit that makes a great alternative to Rufus on Mac. It has the ability to load and install various Linux distros on Mac. It is easy to use and supports a myriad of platforms. All you have to do is select an ISO file or the specific distribution you want to download and then simply choose the target drive. It also comes with a nice GUI, which further adds to the user experience during use.
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Etcher is another great Rufus alternative for Mac. It has been designed to allow you to easily and comfortably burn ISO images to USB drives and SD cards. The utility comes with an advanced interface which may be intimidating on first glance, but after going through the simple user guide, getting around to use the utility becomes a breeze.
Simply download this tool, launch it, and then choose the IMG file you are interested in burning. You will then select the location of the target USB drive or SD card and then wait for it to do its magic. It is lightweight and relatively fast, so you won't have to wait for a whole day for the burning process to end.
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Rufus is a great application for burning ISO to USB. Unfortunately, there is no Mac version yet. So for burning ISO to USB on Mac, you have to use third-party alternatives like UUByte ISO Editor to get it done. The suggestions in this post almost do the same thing as Rufus on Windows so don't worry about the functionality. Go ahead and pick up the best one according to your experience.