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:
Some features of Mac OS X Lion are not supported for the disk (volume name) If this message pops up, you’ll still be able to install Lion. However, as explained by Apple, the installer won’t. Snow Leopard is the gateway to update your Mac to a newer operating system via Apple Purchases. Having seen the negative reviews, I thought I'd give it a go and see what happens. Nothing to lose. Well, imagine my surprise when I copied the iso to a USB stick, stuck it into my 2008 MacBook Pro and it worked beautifully. Unlike previous versions of Mac OS X, Lion (OS X 10.7) doesn’t ship on a bootable disc—it’s available only as an installer app downloadable from the Mac App Store, and that installer doesn. What Is an OS X Recovery Disk? The OS X Recovery Disk is a native but hidden recovery volume on your Mac hard drive. This feature can be used to start up your machine and perform emergency maintenance services such as repairing a corrupted drive by running Disk Utility, surf the Internet to assess the problem you might be experiencing or download any necessary updates.
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.
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.
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:
Sep 18, 2020 • Filed to: Solve Mac Problems • Proven solutions
Do you know that mini heart attack you get when your Mac crashes or would not start? It is the worst feeling in the world, especially if you have a lifetime worth of work stored inside your machine. What should you do in these situations? As you are probably have been advised many times, backing up your data regularly is a great practice. For Mac users, setting up an OS X Recovery Disk would be beneficial when trouble strikes. For example, it is conducive to Mac file recovery while you find data lost.
Mac Os X Lion Recovery Disk Assistant Download
What Is an OS X Recovery Disk?
The OS X Recovery Disk is a native but hidden recovery volume on your Mac hard drive. This feature can be used to start up your machine and perform emergency maintenance services such as repairing a corrupted drive by running Disk Utility, surf the Internet to assess the problem you might be experiencing or download any necessary updates. You can also use the OS X Recovery Disk to reinstall your operating system and restore lost data from Time Machine backup.
Part 1 How to Restore Mac with Recovery Disk Mac
Now that you know that your machine has a built-in recovery tool, you may ask, 'How to use the OS X Recovery Disk?' The feature allows you to do the following options:
- Use Time Machine backup to restore your Mac.
- Reinstall Mac OS X with a recovery disk.
- Get help online or check your internet connection.
- Use Disk Utility to verify and repair connected disks.
Related: You can also use Disk Utility to resize volume on Mac.
Here is how to repair Mac disk and recover Mac with OS X Recovery Disk:
- To put your Mac into Recovery Mode, restart your machine and hold down the 'Command + R' keys on your keyboard simultaneously. Continue to do this until the Apple logo appears.
- When your Mac has started up, the OS X utility window will appear and prompt you to choose one of the four options listed above. (Note: if you do not see this, but instead see a login page, you will need to restart your Mac and do the whole process again).
- Click 'Disk Utility' and choose the drive you want to repair on your Mac. Open the 'First Aid' tab. To check the problem your Mac has, click the 'Verify Disk' button. Click the 'Repair Disk' button to start fixing this button.
Part 2 How to Create an OS X Recovery Disk
Since OS X Mountain Lion, everything went digital and maintenance-minded. Mac users could no longer depend on physical recovery disks to help them fix any problems on their machines. But what how can you access this hidden partition if something goes wrong with your hard drive? You can always connect your computer online and initiate the OS X Internet Recovery feature, but realistically, you may not always have an internet connection. This method will also not work if you had upgraded an old Mac to run on a newer version of OS X.
In these situations, having your OS X Recovery Disk easily accessible on an external USB drive or SD card would be beneficial. It is straightforward. Read on to learn how to create OS X Recovery Disk that you can easily access anywhere, anytime. Before you start, here are some of the things you need to adhere to:
- To create an OS X Recovery Disk, make sure that your machine is at least running on OS X Lion or Mountain Lion and that there is an existing Recovery System on its startup volume. If you have a newer Mac, use Internet Recovery to get the system online.
- An external USB drive or SD card with at least 1GB free space.
Once you have made sure both requirements are fulfilled, follow the following steps to create an OS X recovery disk:
- Download the Recovery Disk Assistant from the Apple website if you do not have it already in your Applications/Utility folder.
- Wait until the download is complete and double-click on the file, which should be named 'RecoveryDiskAssistant.dmg.' This will create the Recovery Disk Assistant.appfile - drag it into your Applications folder.
- Attach an external hard drive or USB stick and launch the Recovery Disk Assistant. Agree to the terms and conditions and wait until the software detects your external drive.
- Select the drive you want to use to create the OS X Recovery Disk. Click 'Continue'. (Note: all data in the selected drive will be overwritten so that the wizard can install the needed data to make the external hard drive or USB stick into a recovery disk.)
It will take some time for the process to complete. When the software prompts you that it is done, click on the 'Quit' button. Eject the new recovery disk and keep it in a safe place. You will be able to use the disk when you need it the most. It is also a good idea to update this disk regularly.
Part 3 How to Recover Data on Mac Hard Drive
How do I recover files on my Mac for free?
If you just want to recover deleted or lost files from Mac hard drive, you can rely on a free data recovery program to help you do that. For example, Recoverit Free Mac Data Recovery. This file recovery freeware for Mac is dedicated to recovering data on Windows or Mac computer. Download osx mountain lion on unsupported mac. If you want to retrieve data from an external device, like an external disk or memory card, connect it to your computer and the stored data can also be recovered.
Recoverit - The Free Software for Mac OS Recovery
- Recover documents, photos, videos, emails, and more from Mac hard drive.
- Recover 1000+ types and formats of files in different data loss situations.
- Scan and preview the files before you recover them from all storage devices.
Video Tutorial on Windows and Mac Hard Drive Recovery
This free hard drive data recovery software is easy to use and user-friendly. Watch the video, and you can get three simple steps to recover your data from the hard drive.
3 Steps to Recover Files from Mac Hard Disk
Download Recoverit Free Data Recovery and take the next three steps to recover Mac hard drive data for free right away.
Select the recovery disk
To recover data from a Mac hard disk, please select the hard drive where you want to restore Mac data. Click the 'Start' button to move forward.
Scan the Mac recovery disk
Recoverit Mac Disk Recovery will start an instant and all-around scan on the recovery disk. All the lost, inaccessible or deleted files on Mac will be shown gradually.
Preview and recover data
Mac Os X Recovery Download
Once the scan ends, all the scanned files will be listed according to the file formats. You can preview the files, select the wanted ones, and click 'Recover' to get them back.
Mac Os X Lion Recovery Disk Download Version
Having a built-in recovery solution is excellent, especially when you tend to lose or misplaced recovery disks. It would be great to learn how to use it and have a copy of it stored outside the machine so that you will be able to access it when you cannot do it straight from your computer. Fail to do it? Only want to recover data? Recoverit Mac command to download file from url. can help you. Download it and recover lost files for free.
What's Wrong with Mac
Mac Os X Lion Recovery Disk Download 64-bit
- Recover Your Mac
- Fix Your Mac
- Delete Your Mac
- Learn Mac Hacks