First is via a USB installer which needs an access to any device running macOS. Second is to install macOS using recovery which NEEDS an active internet connection. If you don't have access to any Mac then you could use the Internet Recovery Install. It uses Clover but I think the guide only installs the Clover boot loader on the USB drive. Reinstall macOS Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions. Follow these guidelines during installation: If the installer asks to unlock your disk, enter the password you use to log in to your Mac. GUIDE Internet Recovery for macOS Big Sur using OpenCore: OpenCore: 0: Nov 16, 2020: O: opencore macOS catalina installation stuck at Your Internet Connection.please help: OpenCore: 3: Feb 20, 2021: GUIDE How to Create a config.plist file for booting macOS on Intel Pentium and Celeron Desktops OpenCore OpenCore: 8: Dec 11, 2020.

1. How Do You Fix Internet Recovery On A Mac
2. Os X Catalina Internet Recovery
3. Macos Catalina Internet Recovery Free

Customers get Software upgrades for Mac computers through the online app store ever since the release of macOS Lion. Be it a clean install or upgrade, Mac App store require you connect to the internet to download whole installation files. The online OS update is OK if you have stable broadband connectivity and enough bandwidth. Apple also provides an option for internet recovery of macOS if your computer fails to boot. But there are situations where you can’t download the OS from the Apple servers. Having a macOS offline installer or a bootable USB disk is the only solution in such scenarios.

Download macOS offline Installer

Installing macOS without internet requires a bootable USB disk. And you need to download a full-size macOS installer for making this disk. Hence, before anything, we will tell you how to download macOS offline installer directly from Apple to your Mac using a GitHub script.

Download the gibMacOS script from this link and extract it to your Mac. From the extracted folder, run the script called gibMacOS.command — it will open the Terminal as shown below.

Wait for the script to fetch the macOS download catalogue from Apple. When the list is ready choose a number as per your OS option and press the Return/Enter key. You can use this script to download macOS Big Sur (11.1), Catalina (10.15), Mojave (10.14), and High Sierra (10.13.6). A new folder “macOS downloads” appears in the “gibMacOS-master” as you provide a download option, and the OS starts downloading as you can see in the video.

The OS gets downloaded as parts, PKGs, DMGs and other files. For macOS versions up-to Big Sur, you need to use another script “BuildmacOSInstallApp.command” in the main folder to join all the downloads and make the full macOS installer app. All you need is to drag and drop the downloaded macOS folder to the terminal window. The script will build the offline installer and save it to the same folder.

You don’t need to use the second script if your choice is macOS Big Sur. Because, for macOS Big Sur you get a full-size installer from Apple in PKG format. Double-click and open the InstallAssistant.PKG to save the “Install macOS Big Sur.app” to the Applications folder.

Apart from this, some older versions of macOS are available for direct download from Apple (Sierra, EL Capitan, Yosemite) in DMG format.

How to make a macOS bootable USB installer

It is possible to create a backup macOS installer on a DVD or USB drive but later is the best choice. Most of the Macs these days don’t have DVD slots, and the installation through a disc is very slow. Hence we discuss only about making macOS recovery installer on a USB disc. For this you need a Mac and a USB pen drive of at least 8 GB space, and a third-party app called DiskMaker.

1. First, download a copy of Disk Maker from the official website.
2. Choose a version as per your requirement. For example, if you want make USB installer for macOS Catalina 10.15, download Disk Maker X 9.
3. I use an MacBook Pro with High Sierra. Hence, I’m downloading disk maker X 7.
4. The next step is to download full macOS installer from the App Store to your Applications folder.
5. Run Disk Maker DMG installer and copy the app to the Applications.
6. The application will automatically detect the downloaded macOS as shown in the screenshot. Select “Use this Copy” if you would like to proceed with it.
7. Next is setting the USB pen drive for creating the bootable installer. Choose the third option ” An 8 GB USB Thumb drive.”
8. The app will list all drives in your system. Pick the one you would like use as macOS USB installer.
9. Ignore the warning message and proceed to Erase and Create macOS USB disk. Don’t forget to provide your admin password when it prompts.
10. Keep checking notifications tab for progress. When it completes you will find Install macOS Mojave (or High Sierra) mounted to your desktop as a USB disk.
11. That’s your backup. Unmount and keep the USB installer to a safe place.

Unfortunately, the above app is not compatible with macOS Big Sur 11 and above. Check the instructions on Apple website, the manual method to make macOS offline USB installer.

What is the alternative if I don’t have usable Mac at the moment?

This method is applicable when you have a Mac, and the internet recovery fails. But think about a situation when your only Mac stops to boot, and you don’t have USB installer or TimeMachine backup! Downloading MacOS DMG file might save you. If you have a macOS DMG, you can create bootable USB disk from a Windows PC — use a software like TransMac for this purpose.

Clean installing or restoring a Mac offline with USB pen drive

As said earlier, you could use the macOS USB installer to do a clean install or restore it upon a boot failure. Just connect the USB disk and press the Option/Alt Key when you hear the boot sound. The Mac will then display all the startup disks available.

Pick the USB drive starting with the label “Install macOS” and follow on-screen instructions to complete the installation. If you need, use the Disk Utility to format the drive for doing a clean install.

This article will tell you what to do when the macOS Recovery mode not working from two aspects: one is to fix the macOS Recovery mode not working issue, the other is to use other ways to complete what needs to be done in macOS Recovery mode.

And most of all, it will show you how to restore your Mac without Recovery mode in detail:

• 1. When your Mac is with OS X 10.6 Snow Leopard or older system
• 2. When your Mac is with OS X 10.7 Lion or later system
• 3. General way: Install macOS from the created bootable installer

What you can do with macOS Recovery mode

macOS Recovery is a special mode on Mac, which loads macOS built-in recovery tools from a special disk partition (in the startup disk) that holds a recovery image along with a copy of the macOS installer. In the macOS Recovery mode, you can:

1. Use the Restore from Time Machine Backup utility to retsore your unbootable Mac, or recover the lost important files.
2. Utilize the Reinstall macOS feature to reinstall the system when the current one has something wrong like frequent system crashes, running slowly.
3. Use the Terminal to do some tasks like checking the conditions of your Mac and fix some errors.
4. Take advantage of the Disk Utility to check and repair internal and external disk issues.

How to confirm Mac Recovery mode not working

However, the damn macOS Recovery mode was out of work at critical moments. When you press the Command + R keys during your Mac re-startup, one of the following situations has occurred:

1. You've booted into the normal mode (no macOS Utility window shows up).
2. Options on the screen have frozen up in macOS Recovery mode.
3. A black screen has occurred on your Mac when you enter into recovery mode.

Why & how to fix macOS Recovery mode not working

All the above situations manifest that the macOS Recovery mode is not working. So why your Mac won't boot into Recovery mode properly? Here are the possible reasons and corresponding fixing tricks:

1. Your keyboard is fault. The keyboad is connected to your Mac via Bluetooth. When there's a connection issue, the keys can't work. First, you can reconnect it to your Mac. If it still can't work, replace it to another keyboard.
2. Your Mac has a T2 chip or M1 chip. The way to boot into macOS recovery mode is different. So, the Command + R keys are not working. For the Mac with a T2 chip, try Option/Alt + Command + R keys when rebooting your Mac. While for an M1 Mac: Turn on your Mac and hold the power button until you see the startup options window, which includes a gear icon labeled 'Options'. Select 'Options', then click Continue.
3. Your M1 Mac hasn't updated to the latest version. Although the first delivered M1 Macs installed macOS 11 Big Sur, the system has some bugs. And these bugs may disturb your use of some of the utilities on your Mac, like Recovery mode. To repair the bugs, Apple has released updated macOS versions with patches to fix the bugs. So, it is recommended to update your macOS 11 to the latest version.
4. The recovery files for macOS Recovery mode are corrupted or mistakenly deleted. Usually, the recovery files are stored on startup disk. In such a situation, you have to reinstall macOS or restore your Mac from Time Machine backup (if you had backed up with Time Machine before).
5. Mac Recovery mode has some diversities in different macOS versions. The macOS Recovery has a set of recovery tools, which are controlled by the terminal. Under different macOS Recovery modes, the commands that the terminal executes vary. So, you can find some recovery tools in certain macOS version but cannot in another. You can try to upgrade your macOS.

To restore your Mac without Recovery mode

However, if the macOS Recovery mode still doesn't work, what you can do to reinstall system or restore your Mac? No worries. Here will offer you some ways.

As for most of you who use macOS Recovery mode to restore your Mac, the common situation is that your Mac won't boot. At this time, firstly you need to utilize some data recovery software like iBoysoft Data Recovery for Mac to recover your data. iBoysoft Mac Data Recovery (Supported: macOS 11 - macOS 10.2 & OS X 10.11 - OS X 10.7) can help you recover data from an unbootable Mac.

• Recover data from Mac that won't trun on

Then, try the following ways to restore your Mac. The restoring ways varies according to different macOS versions.

Your Mac is with OS X 10.6 Snow Leopard or older system

There's no macOS Recovery utility on your Mac. You have to reinstall OS X with the original disk that has preinstalled OS X. The original disk usually offered for you along with your Mac.

Your Mac is with OS X 10.7 Lion or later system

You can try macOS Internet Recovery mode. macOS Internet Recovery mode is also a restoration tool that connects directly to the server at Apple's to download an original version of the OS to be installed on your computer.

With macOS Internet Recovery mode, you can restore your Mac from Time Machine backup, reinstall OS, use Disk Utility to check disk errors. The requirement for using Internet Recovery mode is the available network. It only supports networks using WEP and WPA security.

How Do You Fix Internet Recovery On A Mac

To boot into Internet Recovery mode, you should follow these operations:

• Press and hold Command + Option/Alt + R keys when rebooting your Mac.
• When you see a spinning globe and the message 'Starting Internet Recovery' appears on the screen, release the keys.
• Wait for the progress bar to load. Then, you'll see the macOS Utility window on the screen.

Then, if you have a Time Machine backup, you can use the Restore From Time Machine Backup utility to restore your Mac. If you want to reinstall macOS, select the Reinstall macOS feature, and then follow the onscreen steps to reinstall a new copy of macOS.

General way: Install macOS from the created bootable installer

If you don't have an original disk preinstalled with OS X installer and the Internet Recovery mode also not working due to network issues, the last way is to create a bootable installer and install macOS from it. As this method is a little bit complex, here will show you the detailed steps.

Preparations:

1. A USB drive formatted as Mac OS Extended with at least 16GB in size.

2. Get macOS installation files. Find a healthy Mac, download the current macOS of the healthy Mac, like Catalina in the App Store. Note that don't click on install at this time. If you want an update of the current system, go to System Preferences > Software Update. Then download the macOS installation files. The installation files are in the Application folder by default.

3. If your Mac with Apple T2 chip (Check in Apple menu > About This Mac), you should enter macOS Recovery mode > Startup Security Utility > check Allow booting from external media.

Os X Catalina Internet Recovery

Next, create a bootable installer:

• Connect the USB drive to the healthy Mac.
• Open Finder > Applications > Utilities > Terminal.
• Type the following commands in Terminal and press Enter. Here the Applications means that the installation files are in the Application folder of the Mac. MyVolume means where the installation files will be saved (the name of your USB drive). Here take macOS Catalina as an example:

Note: The command line is suitable for other macOS versions, only replace /Install macOS Mojave.app/ to the desired version, like /Install OS X El Capitan.app/.

• Type your administrator password if required and press Enter.

• How to recover/reset your forgotten Mac password

• Type Y when warning you that it will erase the USB drive and press Enter.
• Then, the installation files on the Mac will be copied to the USB drive.

Macos Catalina Internet Recovery Free

When the copy work is done, it will show 'Copy complete and Done'. Now, you've created the macOS bootable installer on your USB drive successfully. You can eject the USB drive.

The last, install macOS from the bootable installer:

For an Apple Silicon M1 Mac VS. Intel-based Mac, the operations are different.

Note: Your Mac should connected to the internet and compatible with the version of macOS you'll install.

For an Apple Silicon M1 Mac:

• Attach the USB drive with the bootable installer to your unbootable Mac.
• Hold the power button when booting your Mac until the startup options window appears.
• Select the volume that contains the bootable installer.
• Follow the instructions to finish the installation.

For an Intel-based Mac:

• Connect the USB drive with the bootable installer to your unbootable Mac.
• Hold the Option/Alt key at once after rebooting your Mac.
• Release the Option/Alt key when you see the bootable volumes.
• Choose the volume having the bootable installer.
• Follow the instructions to finish installation.

After reinstalling macOS or OS X, you can restore the data from your backup (If had).

With a set of recovery tools, macOS Recovery plays an important role in restoring your Mac. However, the macOS Recovery mode not working issue is not rare, which brings a lot of troubles for you. Hopefully, you can try the solutions in this article to fix the macOS Recovery mode not working problem. Moreover, get some alternatives to reinstall macOS and restore your Mac when Mac Recovery mode not working.

• How to recover data from an Apple Silicon M1 Mac