Though you can install Mavericks (OS X 10.9) directly from your Mac's hard drive, a bootable installer drive can be more convenient for installing the OS onto multiple Macs. And if your Mac is. Feb 20, 2017  My snow leopard install DVD does not work - I believe the DVD reader on my old white MacBook is damaged. Can I create an install USB flash drive from the snow leopard DVD? I have a newer iMac running macOS Sierra. Bootable OS installation on an external hard drive helps when computer's hard drive fails. To make Mac OS bootable disc, insert Mac OS Leopard installation DVD. From installer welcome window click Install Mac OS X. Click Continue, agree to licence agreement, then click Mac OS Boot disc option. Mar 12, 2020  Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended. Open Terminal, which is in the Utilities folder of your Applications folder.

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• Create Bootable Os X Usb On Windows
• Create A Bootable Usb Drive Mac Os X Leopard
• How To Create A Bootable Mac Os X Snow Leopard Installation Usb Drive

I had a guy bring me in an old Mac Book Pro that had a corrupted hard drive. I saved his Data but then realized his computer was so old that I was going to have trouble getting a copy of OSX installed. His computer was no longer supported on current OSX releases. To make things worse his DVD drive wouldn't read a install disk. So this post is the result of me finding a way to resurrect an old Mac Book Pro. I hope it will help someone else in a similar situation.

Note:

Before starting this tutorial, ensure that you have a USB drive with at least 8GB of storage as well as a Leopard, or Snow Leopard retail DVD or disk image. Grey DVDs that were included with a Mac at the time of purchase cannot be used to make USB boot drives as they do not include drivers for Macs other than the computer it was shipped with. In this tutorial I will be creating a Snow Leopard USB install disk. The steps are the same to create one for Leopard.

Creating a Snow Leopard USB Boot Drive Using Disk Utility

Start by launching Disk Utility on the Mac. To do this, you can either search for the application in Spotlight or find it in the Applications folder. Locate the USB drive on the left-hand side of the window and click on its name, not its partition.

Format the USB drive

• Click the Partition tab
• Under the Partition Layout header click on the 1 Partition option in the drop-down menu
• Click the Format drop-down menu and select Mac OS Extended (Journaled).

Bear in mind that this will erase all data from the USB drive, so backup any important files before proceeding.

• To format the USB drive drive, click the Apply button in the lower right-hand corner of the Disk Utility window.

Snow Leopard, DVD or Disk Image

• Locate a Snow Leopard disk image or DVD on the Mac
• If you're using a disk image, mount it to the desktop
• In the Disk Utility window, click the Restore tab in the USB drive's menu

In the center of the window you'll see two boxes: one labeled Source and another Destination.

• Drag-and-drop the USB drive's partition into the Destination box
• Drag-and-drop the Mac OS X Install Drive disk into the Source box
• At the bottom right-hand corner of the screen and click the Restore button

Disk Utility will restore the OS X Install DVD or disk image to the USB drive; this process may take anywhere from 20 minutes to an hour depending on how quick the Mac is.

Using The Snow Leopard USB Drive

Now that you've created a Snow Leopard USB drive, let's use it to install OS X Snow Leopard as well as access Terminal, Disk Utility, and other OS X utilities.

• Power down the Mac and reboot while holding the Option key
• Select the OS X Install DVD from the boot menu using the arrow keys on the Mac's keyboard
• Select the language you'd like to use when prompted

Installing OS X Snow Leopard

To install OS X Snow Leopard from the USB drive, you'll need to reformat the Mac's hard drive. To do this, look towards the top of the screen and click on Utilities from the top menu and then click Disk Utility from the drop-down menu.

Formatting The Mac's Hard Drive

• Click on the Mac's hard drive name
• Click the Erase tab
• Select Mac OS Extended (Journaled) from the Format drop-down menu
• Name the drive whatever you'd like

Mac Os Bootable Usb Windows

Please note that all data on the Mac's hard drive will be erased, so backup all important files before proceeding.

• Press the Erase button to format the Mac's hard drive

Starting The Snow Leopard Installer

• Quit Disk Utility by pressing Command-Q on the keyboard
• Press the Continue button
• From the center of the window, select the Mac's hard drive
• Press the Install button

OS X Snow Leopard may take a bit of time to install depending on the Mac's hardware. Upon completion, the Mac will restart and prompt you to create an account.

Disk Utilities on the Snow Leopard USB Drive

Additionally, you can access Disk Utility, Terminal, Safari (to access Apple help articles. not general browsing) and other Mac utilities from the Snow Leopard USB drive.

Boot the Mac to the USB drive using the steps shown above and click on the Utilities button from the top bar. You can access all available utilities from this drop-down menu.

It's nice to have these utilities available to use from the USB drive, especially Disk Utility. For example, if you believe your hard drive has died or is corrupted, you can boot your Mac from the USB drive and use Disk Utility to check the the hard drive's SMART status and repair said drive.

OS X Snow Leopard USB Drive, Completed

In this tutorial, I've shown you how to create a bootable OS X 10.6 Snow Leopard USB drive. You can now use the USB drive to upgrade, maintain and restore Macs to OS X 10.6.

These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

Download macOS

Find the appropriate download link in the upgrade instructions for each macOS version:

macOS Catalina, macOS Mojave, ormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.

OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.

Use the 'createinstallmedia' command in Terminal

1. Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
2. Open Terminal, which is in the Utilities folder of your Applications folder.
3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.
   Catalina:*
   Mojave:*
   
   High Sierra:*
   El Capitan:
   
4. Press Return after typing the command.
5. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
6. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created.
7. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. You can now quit Terminal and eject the volume.

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument, similar to the way this argument is used in the command for El Capitan.

Use the bootable installer

After creating the bootable installer, follow these steps to use it:

1. Plug the bootable installer into a compatible Mac.
2. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
   Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it.
3. Choose your language, if prompted.
4. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
5. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

Create Bootable Os X Usb On Windows

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:

Catalina:

Create A Bootable Usb Drive Mac Os X Leopard

Mojave:

High Sierra:

How To Create A Bootable Mac Os X Snow Leopard Installation Usb Drive

El Capitan: