Dosdude Macos Catalina

| 18-09-2021
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Make your old Mac support macOS Catalina. Older Mac owners don’t have to worry. It’s not the end of the world. There’s a patch that lets you install Catalina to Macs that are not officially supported. The patch is known as DosDude Catalina Patcher. DosDude Catalina Patcher is a third-party tool, meaning Apple does not develop the tool. On the surface, the macOS Catalina installer appears to copy the operating system files to the startup disk of your Mac. But dig a little deeper and you may realize that it actually splits your boot volume into two distinct components, named Startup and Data.

Install macOS Catalina on an Old Mac

Many people still love their old iMacs. You too know one? Well, I know a few as I happen to be one of them. Still in love with my old 2011 year 27” iMac that till now ran Mac OS High Sierra. And then, one day it stopped upgrading anymore. Reason…? Apple had changed everything to a 64-bit distribution system leading to first of its types Mac OS Mojave. I so badly wanted a solution to upgrade my system to the new OS but it just failed. I almost hated Apple for this as they bullied us to purchase a new computer. I was adamant though to keep trying and upgrade this to the new Mac OS. Several of our customers called us in to find a way to upgrade their MAC computers but we “Computer Repair Onsite” did not have a solution for them. Time passed and soon there was this new Mac OS by Apple called Catalina. It looked really cool and my eagerness to get upgraded on it increased even more. Finally I got to know about a patching tool, called DosDude.

Update

DosDude Catalina Patcher is a third-party tool that helps the users to patch the Mac OS Catalina installer on otherwise unsupported Macs. Of course, just because you can do this, doesn’t mean you should, as there’s a good chance that performance will be sub-optimal, while Catalina features may depend on modern Mac hardware (Sidecar, for example) and likely won’t work at all. You can find a compatible list of unsupported Macs for Catalina Patcher on the DosDude website.

How to Install macOS 10.15 Catalina on an Unsupported Mac. The process of using the DosDude Catalina patcher tool to install the macOS Enjoy this tip? Apr 13, 2021 — Mac Os El Capitan Patcher Tool For Unsupported Macs. If you follow in the macOS Catalina for unsupported Macs you would see all the issues we are having with 10.15.4 and even on discord if you are on a fully supported Mac you can install macOS Catalina 10.15.4 from the software update no need you use the patcher, He did as several of us tried to install 10.15.4 including Dosdude and can't get into the desktop so he reveled it back so we can at.

Despite these risks, I was happy that at last my old Mac will have the feel of the new OS. So, I tried that and tried successfully. For all the readers as well, if you wish to try this work-around, then do that at your own risk or employ someone technical enough, like Computer Repair Onsite, who can manage a successful transformation of your Mac computer to the new life. For everyone’s knowledge, I am sharing quick steps that will help you to install Mac OS Catalina on your Macs. Here you go:

  1. Make sure your computer is bnacked on a Time Machine.
  2. Download the latest version of the Catalina Patcher by DOSDude1.
  3. Open the application and select Download a Copy or browse a copy from local disk.
  4. Connect a USB flash drive (formatted as MacOS Extended Journaled) into your Mac and select Create a bootable installer from the three Installation Method options.

5. Select your flash drive volume from the list and click Start.

6. When the installer is complete, use the pendrive for your unsupported Mac and hold down the Option key when the reboot tone sounds.

7. Select your USB drive installer from the boot list.

8. If your Mac is currently running a version of macOS that predates High Sierra or Mojave, you’ll need to format your hard drive to APFS before installing Catalina.

9. Choose Reinstall macOS and wait for the new version of macOS to install.

10. After the installation has completed, you should restart the Mac in Recovery mode again, choosing the drive that contains the bootable installer.

11. Now choose macOS Post Install and the required patches will be installed on your Mac so that Catalina can work.

Dosdude1 Macos Catalina Update

12. When the patches have been applied choose Force Cache Rebuild.

13. Restart.

14. When it reboots, your Mac should now boot into a fully working copy of macOS Catalina.

15. Back up your Mac before starting the whole process.

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Back in March, I authored a post on using DeployStudio to image the latest macOS releases that utilized APFS formatting. With the release of Catalina, I had figured this method of preparing machines would end. This is because of Catalina’s unique method of partitioning the APFS container into multiple sections, including both a read-only system volume and a writeable data volume. However, thanks to an updated version of AutoDMG, DeployStudio lives again.

As far as the steps to deploy an APFS image to a machine using DeployStudio, refer to the other article, nothing has changed. Also, remember that this will not work on machines with a T2 chip. The writing is on the wall; that being said, I still have a lot of non-T2 chip machines which makes this worthwhile.

The key here is using the latest beta version of AutoDMG (at the time of writing this, it is v1.10b587). According to the release notes, it supports creating DMGs of macOS Catalina. However, if you try and create a DMG like normal using AutoDMG, you’ll get an error suggesting that InstallInfo.plist is not present in the Catalina installer (which isn’t true). After reading through some of the reported issues with the latest beta, it was suggested that creating a DMG with the Catalina installer on it, then mounting said DMG and using the Catalina installer from that will resolve the issue. Here is what I had success with:

Dosdude1 Macos Catalina Free

  1. First of all, make sure you’re performing this on a computer with plenty of free space. You not only have to download the full macOS Catalina installer, you also have to copy it onto a DMG, and then create the final deployable DMG. This will take up roughly 30 GB of storage, so be prepared.
  2. Download the latest version of AutoDMG (linked to above).
  3. Download DosDude’s Catalina Patcher Tool to aid in downloading a full macOS Catalina installer. Upon opening the Patcher Tool, you’ll want to click Continue until you see this screen and can click Download a Copy. If you try downloading Catalina from the App Store, you may get a partial installer app that won’t work with AutoDMG. Make sure to use the Patcher Tool. Once you have downloaded a full macOS Catalina Installer app, you can quit the Patcher Tool.
  4. The macOS Catalina Installer app should now be present in your ~/Downloads folder. Create a new folder (anywhere, probably easiest just in your Downloads folder) and place the Catalina installer inside of the folder.
  5. Open the Disk Utility application and navigate to Menu Bar > File > New Image > Image from Folder… I suggest not compressing the disk image, as I have had compression cause issues with mounting/cloning/copying in the past. You can change the Image Format from Compressed to Read-Only. Select the folder that the macOS Catalina installer is in (not the installer itself) and click Save. This will begin a process which creates a disk image with the macOS Catalina Installer on it. For some strange reason, this is what will resolve the error that AutoDMG throws up when trying to create a deployable Catalina disk image.
  6. After the disk image is created, mount the disk image. Open AutoDMG and drag the macOS Catalina installer app from the disk image onto AutoDMG (like usual).At this point, it’s business as usual. AutoDMG will create an image that you can copy to your DeployStudio repository and deploy to your Macs. Remember that you must select “First Disk Available” when deploying an APFS image in DeployStudio in order for it to work correctly.

Are There Any Problems With Macos Catalina

Hopefully this helps someone! If you have non-T2 chip Macs that ever need re-imaging, and you happen to already have access to a DeployStudio server, it’s a no brainer. Thanks for reading!

Peace,

Was Ist Macos Catalina

Joel