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Avast bootable usb for mac how to#
Avast bootable usb for mac mac os#
Avast bootable usb for mac install#

Avast bootable usb for mac how to#

How to Create a Bootable Flash Installer of the OSX or MacOS on a USB Drive To overcome these limitations of the installer for OS X or macOS, all you need is a USB drive that contains a bootable copy of the installer. You also lose out on having an installer that you can use to perform clean installs that completely overwrite your startup drive, or having an emergency bootable installer that includes a few useful utilities that can bail you out of an emergency.

Avast bootable usb for mac install#

With the installer gone, you lose the opportunity to install the OS on more than one Mac without having to go through the download process again. But the downside is that the installer you download is deleted as soon as you make use of it by installing the Mac operating system.

Avast bootable usb for mac mac os#

The big advantage of downloading the Mac OS is, of course, immediate gratification (and not having to pay shipping charges). The process of installing OS X or macOS on a Mac hasn't changed a great deal since OS X Lion altered the delivery of the OS from optical disks to electronic downloads, using the Mac App Store. This can take a while, so be patient.Īdvertisement Avast ultimate bundle for mac.

Let the command line do its work and don’t interrupt it until you see the final line that says Done.

Type in your password when prompted and press Enter.

Type (or copy and paste) this command into Terminal, replacing Untitled with the name of your drive, then press Enter: sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install macOS Sierra.app -nointeraction &say Done.

Open up Terminal (Applications > Utilities).

It’s best to disconnect any other external hard drives or flash drives so you don’t mix them up. Before you do so, back up any important data on that drive. If it isn’t, open up Disk Utility and format is so it is. Make sure the drive is formatted for OS X Extended (Journaled). For this tutorial, we’ll use the name Untitled.

Insert an 8GB (or larger) flash drive and give it a name.

If you don’t want to download an extra bit of software, you can make your own installer USB drive using Terminal.

When it’s done, insert your USB drive into any Mac, then launch the installer by holding down the Option key when you boot up your computer.

Select your flash drive from the drop-down menu.

This is should be located in your Applications folder.

Open Disc Creator and click the “Select the OS X Installer” button.

If you have any other data on that flash drive, back it up now, because the installer will delete everything on it.

Insert an 8GB (or larger) flash drive.

Download the macOS Sierra installer and Disk Creator.

The easiest way to create a USB flash installer is with the free program, Disk Creator.