Install Mac Os X From Usb On New Hard Drive
Because of this, I recommend creating your own bootable El Capitan (OS X 10.11) installer drive on an external hard drive or USB thumb drive. If you need to install El Capitan on multiple Macs. Pick the drive you wish to use to start up the Mac. For more advice about installing macOS or Mac OS X read How to update the Mac operating system and How to install old versions of OS X on a Mac. It should only take a minute or two for the drive to be erased and reformatted. Now your drive is ready for OS X. Install OS X. There are two ways you can install OS X on to your external hard disk: by reinstalling OS X from the OS X Utilities repair screen or by downloading OS X. Oct 18, 2015 With the SSD plugged in to your system you'll need to run Disk Utility to partition the drive with GUID and format it with Mac OS Extended (Journaled) partition. The next step is to download from the Apps Store the OS installer. Run the installer selecting the SSD drive it will install a fresh OS.
- New Hard Drive Os Install
- Run Mac Os From Usb
- Install Mac Os From Usb Drive
- Install Macos On New Hard Drive From Usb
- Install Mac Os From Flash Drive
Dec 26, 2017 We’ve shown you how to securely wipe a hard drive with your Mac, and doing so in Recovery Mode isn’t really different from doing so within macOS. To get started, click the Disk Utility option. Depending on how you started Recovery Mode, you may be presented with the option to start Disk Utility right away, as seen above. You definitely want to use a USB 3.0 (or USB-C if you’re using a newer Mac) device, and even then, your system isn’t going to be nearly as snappy as your normal internal drive. So keep that in mind—you probably won’t want this to be your main macOS system.
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
- 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.
- 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: - Press Return after typing the command.
- When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
- 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. - 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:
- Plug the bootable installer into a compatible Mac.
- 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. - Choose your language, if prompted.
- 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.
- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
Learn more
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:
Mojave:
High Sierra:
El Capitan:
- 1. Mac Files Tips
- 2. Mac Software
- 3. Mac Storage Tips
- 4. Mac Troubleshooting
- 5. Mac OS
by Jenefey AaronUpdated on 2020-01-10 / Update for OS X
You may need to boot up your Mac using an external drive or boot volume once in a while, rather than using a start up disk. Booting with an external disk has a lot of significance. Maybe you want to troubleshoot some problems, repair the disk, do partitions, format the entire disk, update, and install OS X etc. All these are executed perfectly when you use an external boot volume to boot up your Mac. In this article, we are here with the detailed step by step guide on how to boot Mac from external hard drive easily. So, let's get started…
Part 1: How to Boot Mac from USB Drive/CD/DVD
Actually, it is possible to boot Mac from external drive or a hard drive, but there are a few specific requirements needed for your Mac to become eligible for that process.
- First, you have to have an Intel-Based Mac.
- Second, the CD or DVD you are using to boot must contain Apple’s Super Drive or if you are using a USB drive then it should be formatted with GUID Partition, and you are also required to install OS X installer. Apple is against booting Mac from an external storage device, because you may install an older version of OS X than the one you were using.
Boot from CD or DVD:
If you want to boot your MacBook/Air/Pro/iMac from an optical media like CD or DVD you need to follow the steps below:
1. Mac os x permanently map network drive. Open your Mac or restart the device if you were already using it.
2. When the startup music is playing press and hold the “C” key from the keyboard.
3. This will start the OS X installer from the CD/DVD on your Mac.
So, it is not too complicated to Mac boot from CD/DVD. You can easily burn a bootable image of OS X on a DVD by using Disk Utility.
Boot from External USB:
Using your USB drive to boot Mac is not as simple as you think. You need to prepare your USB drive beforehand for this specific purpose. You have to format the USB drive and insert the proper Operating System, which is OS X.
1. Turn on your Mac.
2. As soon as the startup music begins you need to press and keep holding the 'Option' key.
3. After that release that key, the Startup manager will be launched.
4. Startup Manager will begin scanning your device and you will be provided with a list of devices that are connected to your Mac.
New Hard Drive Os Install
5. Now, select the drive you want to use with your mouse.
6. Finally, press 'Return' key on the selected option to boot Mac.
This way you can boot your Mac with an external USB drive, but the most critical part is to prepare the USB drive. If you have multiple USB drives connected, then the Startup Manager shall list the drives with the bootable OS. So, this is how to boot Mac from USB drive.
Part 2: Common Problems and Fixes When Boot Mac from External Drive
Run Mac Os From Usb
You may face several issues during MacBook Pro Boot from USB or any external drive. So, a few FAQs are mentioned below which may help you when you are facing any difficulties.
Install Mac Os From Usb Drive
- 1. Have you tried connecting to a different USB port?
- 2. Have you formatted the USB drive with GUID partition?
- 3. Is your Mac shutting down after connecting the disk?
- 4. Is your Disk needs repair?
- 5. Have you connected the USB drive properly?
If you are unable to startup the installer after connecting the USB drive to your Mac, then first you should try connecting it to a different USB port. It may fix the problem.
If you are having problems with your USB storage device then you need to make sure that if you have properly formatted the drive with GUID partition. You have to do it properly otherwise the Intel-Based Mac won't start.
Actually, the MacBook contains a preventive measure and because of that computer shuts down automatically when a damaged USB drive is connected or if the USB port itself is damaged.
If your Mac fails to boot from an external drive even though you have properly installed the OS X installer, then maybe your disk is damaged. You should open Disk Utility and ask permission to repair disk.
There are two types of Apple keyboards, Wired and Wireless. There are also some keyboards with inbuilt USB ports but they may not have enough power to run the drive.
So, this is how to startup Mac from external drive. Follow the frequently asked questions to clear any doubts that you have while booting from external hard drive Mac.
In case, you want to recover any lost or deleted Mac files after a boot, we highly recommend you to go for Tenorshare Any Data Recovery for Mac. It is a utility data recovery tool capable of recovering any type of data from Mac with ease. Go for it!
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Install Macos On New Hard Drive From Usb
Install Mac Os From Flash Drive
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