USING APPLE CD DRIVE HOW TO
USING APPLE CD DRIVE MAC OS
USING APPLE CD DRIVE INSTALL
USING APPLE CD DRIVE UPDATE
USING APPLE CD DRIVE ARCHIVE

This means the command we want to execute will be different for every version of the macOS for which you wish to make a bootable installer. Normally, commands entered into Terminal need to be very precise in order to work. The instruction “createinstallmedia” has been part of macOS installers for some time. We’re going to use the Terminal app to execute an instruction that Apple includes within the macOS installer. Although the guide was made for macOS Sierra it should work well enough for erasing a USB flash drive.

USING APPLE CD DRIVE HOW TO

You can find instructions in the Rocket Yard guide: How to Use macOS Sierra Disk Utility to Partition, Erase Drives. Prepare the flash drive by erasing the drive and ensuring it’s formatted using the macOS Extended (Journaled) file system. Be sure to quit the installer don’t let it start the installation process. When you download the installer, it’s going to automatically launch and offer to start the installation process on your Mac. If possible, beta software should be installed on a test machine and not one used for mission-critical workflows. Before you make use of any beta software you should ensure you have a working backup of your existing system. Beta software can cause unexpected results that could impact the use of your Mac. Warning: The developer beta and public beta of macOS are not finished products and are actively undergoing tests and revisions to mitigate bugs and improve performance. With everything acquired, let’s start by making the bootable installer. Create the Bootable macOS Catalina Installer So, take my 30-minute estimate with a grain of salt. If you’re working with the beta of the OS, you can find the downloadable version either on the Apple developer site, or Apple’s public beta web site.Ībout 30 minutes of your time: The amount of time it will take is difficult to estimate making the bootable flash drive is dependent on the speed of the flash drive you’re using, and whether you’re including the time it will take to download the installer, which is dependent on your Internet connection speed and how much traffic exists when you’re downloading.

USING APPLE CD DRIVE UPDATE

A USB 3 flash drive with fast read speeds would be a good choice.īe sure to quit (Command + Q) the macOS Catalina installer if it starts up after the download is completed.Ī copy of the macOS Catalina installer.This is usually downloaded via the Software Update preference pane (macOS Mojave and later), or the Mac App Store (macOS High Sierra and earlier). You should also consider using a fast flash drive. Going larger isn’t a bad idea, though you can use the extra space on the flash drive to store apps and utilities you may need for troubleshooting purposes. Future versions may require larger flash drives, but for now, 8 GB is big enough. The list of items needed to complete this project is fairly basic, and I suspect you may already have everything you need.Ī connection to the Internet: You’ll need an Internet connection for downloading the installer from Apple.Ī USB flash drive: 8 GB is the minimum size required, at least for all the versions of the macOS through macOS Catalina. What You Need to Create a Bootable MacOS Installer

It can be used as a bootable troubleshooting tool, letting you access the same apps that are found in the Recovery Volume.

This bootable installer meets that requirement.

USING APPLE CD DRIVE MAC OS

This can usually be done provided you have a copy of the installer for the version of the Mac OS you wish to return to. You may have noticed that with each new version of the macOS that’s released, there are usually some users who have one or more issues with it and wish to return to a previous version.

USING APPLE CD DRIVE ARCHIVE

It allows you to archive a copy of the macOS installer, which you may need if you ever want to downgrade to the version on the installer.

USING APPLE CD DRIVE INSTALL

It lets you install the OS on multiple Macs without having to download the installer multiple times.By booting to the installer, you can perform a full erasure of your normal startup device before installing the new OS. It allows you to perform a clean install of the operating system on your Mac using the existing startup drive.There are multiple reasons for having a bootable macOS Catalina installer. Why Make a Bootable macOS Catalina Installer? Macs with Thunderbolt 3 can also use a USB flash drive as bootable media (an adapter may be required). All current Macs support booting from a USB port.You can buy a new USB flash drive large enough for this project for less than $10. It’s small and easy to store in a safe place.A bootable flash drive is the preferred method, however here’s why:

Using apple cd drive