Os Catalina Usb Installer

Posted By admin  On 21.04.21



  • Supported version: 0.6.7
  1. Mac Os Catalina Usb Installer
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  3. Mac Os Catalina Usb Installer
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Creating a bootable installer. To start you need a USB flash drive with at least 12GB of available storage and a local copy of macOS. The installer for macOS Big Sur can be obtained from here. Next, you want to format the USB flash drive using Disk Utility. # Making the installer in Windows. Supported version: 0.6.7; While you don't need a fresh install of macOS to use OpenCore, some users prefer having a fresh slate with their boot manager upgrades. To start you'll need the following: 4GB USB Stick. For USB larger than 16 GB to format in FAT32 use Rufus method. Macrecovery.py (opens new window).

While you don't need a fresh install of macOS to use OpenCore, some users prefer having a fresh slate with their boot manager upgrades.

To start you'll need the following:

  • 4GB USB Stick

  • For USB larger than 16 GB to format in FAT32 use Rufus method

    • This will require Python installed(opens new window)

# Downloading macOS

To grab legacy installers is super easy, first grab a copy of OpenCorePkg(opens new window) and head to /Utilities/macrecovery/. Next copy the folder path for the macrecovery folder:

From here, you'll want to open up a Command Prompt and cd into the macrecovery folder that we copied earlier:

Now run one of the following depending on what version of macOS you want(Note these scripts rely on Python(opens new window) support, please install if you haven't already):

  • macOS 11, Big Sur Note: As this OS is quite new, there's still some issues with certain systems to resolve. For more information, see here: OpenCore and macOS 11: Big Sur
    • For first time users, we recommend macOS 10.15, Catalina
  • Nvidia GPU Note: Reminder to verify whether your hardware support newer OSes, see Hardware Limitations

This will take some time, however once you're finished you should get either BaseSystem or RecoveryImage files:

BaseSystemRecoveryImage

Now with our installer downloaded, we'll next want to format out USB.

# Making the installer

Here we'll be formatting our USB and adding macOS onto it, we have 2 options:

  • Disk Management method
    • GUI Based, simplest way
    • Only UEFI systems are supported(ex. 2012+)
  • Rufus method
    • GUI Based, simplest way
    • For larger USB drives(16GB+)
  • diskpart method
    • Command line based, little more work
    • Required for legacy systems(ie. non-UEFI, pre-2012)

# Disk Management method

Simply open up Disk Management, and format your USB as FAT32:

  1. Right click the Start Button on your task bar and select Disk Management.
  2. You should see all of your partitions and disks. On the bottom half, you'll see your devices. Find your USB.
  3. You'll want to format the USB to have a FAT32 partition.
  • If you have multiple partitions on the USB, right click each partition and click Delete Volume for your USB (This will remove data, make sure you have backups and only remove partitions from your USB)
    • Right click the unallocated space and create a new simple volume. Make sure it is FAT32 and at least a gigabyte or two big. Name it 'EFI'.
  • Otherwise, right click the partition on the USB and click Format and set it to FAT32.

Next, go to the root of this USB drive and create a folder called com.apple.recovery.boot. Then move the downloaded BaseSystem or RecoveryImage files. Please ensure you copy over both the .dmg and .chunklist files to this folder:

Now grab OpenCorePkg you downloaded earlier and open it:

Here we see both IA32(32 Bit CPUs) and X64(64 Bit CPUs) folders, choose the one that's most appropriate to your hardware and open it. Next grab the EFI folder inside and place this on the root of the USB drive along side com.apple.recovery.boot. Once done it should look like this:

# Rufus method

  1. Download Rufus(opens new window)
  2. Set the BOOT selection as not bootable
  3. Set File System as Large FAT32
  4. Click Start
  5. Delete all file autorun in USB Drive partition

Next, go to the root of this USB drive and create a folder called com.apple.recovery.boot. Then move the downloaded BaseSystem or RecoveryImage files. Please ensure you copy over both the .dmg and .chunklist files to this folder:

Mac Os Catalina Usb Installer

Now grab OpenCorePkg you downloaded earlier and open it:

Here we see both IA32(32 Bit CPUs) and X64(64 Bit CPUs) folders, choose the one that's most appropriate to your hardware and open it. Next grab the EFI folder inside and place this on the root of the USB drive along side com.apple.recovery.boot. Once done it should look like this:

# diskpart method

diskpart method

Press Windows + R and enter diskpart.

Now run the following:

Next, go to the root of this USB drive and create a folder called com.apple.recovery.boot. Then move the downloaded BaseSystem or RecoveryImage files. Please ensure you copy over both the .dmg and .chunklist files to this folder:

Now grab OpenCorePkg you downloaded earlier and open it:

Here we see both IA32(32 Bit CPUs) and X64(64 Bit CPUs) folders, choose the one that's most appropriate to your hardware and open it. Next grab the EFI folder inside and place this on the root of the USB drive along side com.apple.recovery.boot. Once done it should look like this:

Legacy Install Setup

If your firmware does not support UEFI, see below instructions:

Catalina

To start, you'll need the following:

Next, open up BOOTICE and ensure you've selected the right drive.

Next, enter 'Process MBR' then select 'Restore MBR' and select the boot0 file from Utilities/LegacyBoot/ in OpenCorePkg: Create bootable usb mac high sierra installer.

Restore MBRRestore boot0 file

Then head back to the main screen and select 'Process PBR' then 'Restore PBR'. From here, choose the Boot1f32 file from Utilities/LegacyBoot/ in OpenCorePkg:

Restore PBRRestore boot1f32 file

Once this is done, head back to your USB and do 1 final thing. Grab either the bootx64(64 Bit CPUs) or bootia32(32 Bit CPUs) file from Utilities/LegacyBoot/ and place it on the root of your drive. Rename this file to boot to ensure DuetPkg can properly:

# Now with all this done, head to Setting up the EFI to finish up your work

Helps you create a bootable USB drive for macOS Catalina which will work with older Macs, not officially supported by the operating system

Catalina
IMPORTANT NOTICE

Download Os Catalina Installer Usb

What's new in macOS Catalina Patcher 1.4.4:

  • Fixed compatibility with Catalina version 10.15.5
Read the full changelog

macOS Catalina Patcher (formerly macOS Mojave Patcher, macOS High Sierra Patcher and macOS Sierra Patcher) is a small yet powerful tool that can help you create a bootable USB drive that can be used to install macOS Catalina on Mac computers older than mid 2012, basically acting as a macOS Mojave patch for unsupported Macs.

The tool extends the list of compatible hardware to the Mac Pro, iMac and MacBook Pro computers released in early 2008, Aluminum Unibody MacBooks or MacBooks Air manufactured in late 2008, or white MacBooks and Mac Minis produced in early 2009.

Get the macOS Catalina Installer app and make sure you have access to a compatible USB drive

To be able to use the app you must make sure that you have a USB drive that has at least 8 GB available, and that you have the macOS 10.15 Catalina installer app on your Mac.

Note that you can download the macOS image from the Mac App Store application only on a machine that supports Catalina: otherwise, you must find an alternative solution.

For your convenience, macOS Catalina Patcher offers you the possibility to download the image through its interface: just navigate to the Tools menu.

At the same time, you must prepare the USB drive with the help of the built-in Disk Utility application: just format the disk using the Mac OS Extended (Journaled) standard.

Easy to configure patcher tool that can create bootable macOS Catalina USBs

Within the main window, you must simply load the macOS 10.15 image you want to use and select the target USB drive. The app will verify the image to make sure everything is OK, and all you have to do is press the Start Operation button.

You have the option to monitor the process in the macOS Catalina Patcher main window, and the utility lets you know when the task is complete.

Worth mentioning is that after you install the OS by using the macOS Catalina Patcher bootable drive, you must launch the macOS Post Install utility to get access to patches specifically designed for your Mac’s model.

Make a bootable drive that allows you to install Catalina on unsupported Macs

Bottom line, if your Mac has been manufactured before early 2008, chances are that you will not be able to install macOS Catalina on your computer.

All things considered, macOS Catalina Patcher is a small and user-friendly utility designed to help you bypass this limitation if your Mac is not in macOS Catalina's compatibility list, created to be used as an unsupported Mac Mojave patch.

Filed under

macOS Catalina Patcher was reviewed by Sergiu Gatlan
4.5/5
SYSTEM REQUIREMENTS
  • 64-bit processor
  • 16 GB USB drive
  • macOS Mojave Installer App
  • Early-2008 or newer Mac Pro, iMac, or MacBook Pro
  • Late-2008 or newer MacBook Air or Aluminum Unibody MacBook
  • Early-2009 or newer Mac Mini or white MacBook
  • Early-2008 or newer Xserve
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macOS Catalina Patcher 1.4.4

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Mac Os Catalina Usb Installer

12 screenshots:
runs on:
Mac OS X 10.6 or later (Intel only)
file size:
223.4 MB
filename:
macOS Catalina Patcher.dmg
main category:
System Utilities
developer:
visit homepage

Os X Catalina Usb Installer

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