But Migration Assistant has its limits: in Catalina and Big Sur, you must migrate from a backup made from or a computer running Mac OS X 10.11 El Capitan or later. Attempts to copy from older.

MacOS Big Sur vs Catalina: Will it be worth the upgrade? 11 Big Sur as 'The biggest design upgrade since the introduction of Mac OS X'. Bring to you if you upgrade from Catalina is a. Supported OS: Mac, Windows, Linux. Conclusion: Deluge is another popular open-source torrent client that’s designed for Mac and highly likely compatible with Big Sur. It isn’t the best-looking app, with an outdated interface, but it is free to use and ad-free. This is a bit of a throwback to my article from May of last year – Tri-Booting a Mac Pro 2,1 – not long before I had just procured my Mac Pro 5,1 (well technically a 4,1 that was flashed to a 5,1 with dual Intel Xeon 5680 CPUs with 12 cores at 3.33 GHz). The above command 'shows you' to Apple as a developer, and software update may offer you the Catalina installer. Might we worth a try. Be aware that the VERSION of Catalina you may be offered is currently the 10.15.2 beta. But if that's what you need 'to get you to where you want to be', it is what it is.

Mac OS CPU Software 4.9, includes the Mac OS ROM file v9.2.1 Top DL : The 9.2.2 universal OS installer CD's archive is a.zip compressed.iso image. It is OK to burn this back to CD using ImgBurn on Windows or Disk Utility on Mac OS X, or Toast on Mac OS 9/X.

Each year, Apple makes improvements to macOS, the operating system (OS) you use on your Mac. The annual Apple Mac update cycle often brings iterative tweaks, but some years have major changes.

• I try to upgrade from catalina to big Sur but i always stuck at apfsmodulestart:2845, i search some solutions in the internet but nothing works, i dont know if catalina is the last version that can handle my machine, or i just miss something? Hp z440 Haswell-E/EP. Intel xeon e5 v3. Nvidia quadro k2000 2gb (no igpu motherboard) 16gb ram.
• First off, the default minimum date and version required for APFS drivers to load has been bumped up to Big Sur. This means APFS drivers that come with High Sierra through Catalina won't load. In addition, the default Secure Boot model has been changed to x86legacy (from j137 - iMacPro1,1) which restricts boot to 11.0.1 and up.
• Step Two – Create macOS 11 Big Sur Bootable USB. Step Three – Mount E.F.I. Step Four – Customize BIOS Settings. Step Four – Install macOS 11 Big Sur on PC – Hackintosh. Step Five – Complete the macOS 11 Big Sur Installation. Step six – Install the Drivers in macOS Big Sur on PC-Hackintosh.
• MacOS Big Sur: Upgrade installation (in-place) Whether creating an MDM policy or running the command remotely on the client device(s), the command below will perform the upgrade to macOS Big Sur.

Your macOS operating system – or OS X, for older versions of macOS – can be updated each Fall, so long as Apple is still supporting your device. Here we’ll show you how to prepare your Mac for an update, the right way to update MacOS to the latest version of OS X or macOS, and some apps that make the process much smoother.

How to prepare your Mac for an OS update

Knowing how to update the latest Mac system is one thing – preparing your machine is equally important. To prepare your Mac for an upgrade, you’ll want to make sure your files are organized properly, all of your system settings are correct, and that your file system is backed up. It’s also important to know if your Mac is eligible for an update.

Check the General Requirements (and Hardware)

To see what specs your Mac has, follow these steps:

1. From the menu bar on your Mac, select the Apple icon on the top left
2. Select “About This Mac” from the drop down menu

This will tell you what year your Mac was made, the version of macOS or OS X you’re currently on, the computer’s RAM (Memory), processor, and which graphics card your Mac has. These are important to know, as upgrading to the latest version of macOS – macOS 11 Big Sur – requires the following:

• macOS 10.10 or later
• 4GB RAM (Memory)
• 15-20GB of available storage.

Note: To see how much available storage space you have, follow the two step process above, then “Storage” tab at the top of the window.

When you want to upgrade MacOS, keep in mind the latest version of macOS is only available for these models:

• MacBook (Early 2015 or newer)
• MacBook Air (Mid 2012 or newer)
• MacBook Pro (Mid 2012 or newer)
• Mac mini (Late 2012 or newer)
• iMac (Late 2012 or newer)
• iMac Pro (2017)
• Mac Pro (Late 2013 or newer)

Back up your Mac

When it’s time to back your Mac up, Apple has an official method dubbed Time Machine. When you use Time Machine, it keeps what’s called an “image” of your Mac, which is what a backup really is. When you backup your Mac, you’re making a compressed version of your entire operating system.

Learn more about time machine backup.

The purpose of creating a backup is most often to have a recent save point you can reboot from. It’s important to do as often as possible.

Here’s how to create a backup of your Mac using Time Machine:

1. Connect an external drive. This is where your backup will be stored.
2. From your Mac menu bar, go to Apple > System Preferences > Time Machine
3. Click “Select Disk”
4. Select the external drive you connected to your Mac
5. Select “Use Disk” in the new popup window

There’s a much better way to backup your Mac, though: Get Backup Pro.

Get Backup Pro makes backing up your Mac simple, and you remain in total control. One issue many have with Time Machine is it often starts backing up during the day, which consumes resources on your Mac, and things you're working on may not save in your backup. Get Backup Pro lets you back your Mac up to any device you like, and you can set the schedule you want for backing your Mac up. You can even choose how many backups you want to keep; Time Machine doesn’t allow such customizations!

Make sure you have sufficient space for macOS Update

Apple recommends you have a minimum of 4GB RAM, or Memory, and 12.5GB available storage when upgrading your Mac. (It’s also wise to have a strong internet connection, as the download can take quite a bit of time!)

Here’s how to check your system to see if your Mac is eligible for an Apple OS update:

1. From the menu bar on your Mac, select the Apple icon on the top left
2. Select “About This Mac” from the drop down menu – this shows you how much Memory (RAM) you have
3. Select the “Storage” tab
4. Under “Macintosh HD,” ensure you have at least 12.5GB storage available

Clean Your Mac

When you think “how do i update my mac operating system?,” you should also be thinking about how to prepare your Mac for the update. Remember that if you need to boot your Mac from a backup, it will load exactly what you have on your Mac at the time of the update. Now is a great time to delete apps, re-organize your files, and make sure your settings are optimized.

There’s just no better app for this than CleanMyMac X. It leaves your Mac running in peak condition, and like Get Backup Pro, it can be set to alert you on a schedule that it’s time to clean up your Mac. All you have to do is open CleanMyMac X on your Mac, select the “Smart Scan” module, and the app scans your system and cleans up unnecessary files, scans for malware, and ensures your settings are set to keep your Mac running as fast as possible by doing things like freeing up RAM and running maintenance scripts.

If you want to really dial your Mac in, CleanMyMac X has a module for uninstalling apps, which also removes their associated files. You can also run the “Maintenance” module to take the Smart Scan feature a step further with a more detailed scrubbing of your Mac.

How to update a Mac

You may be wondering “how do I upgrade my Mac operating system?” Now that we’ve told you how to backup your Mac and optimize it, here’s how you update your Mac:

1. From the menu bar on your Mac, select the Apple icon on the top left
2. Select “Software Update”

That’s all you need to do! Your Mac will tell you if there’s an upgrade available for you. Next time you’re thinking “how do i upgrade my operating system on my Mac?,” remember this two-step process.

How to turn on automatic updates

You can trigger your Mac to update automatically – but first, a word of caution. Many set their Mac to update automatically so they don’t ask themselves “how do i update mac os?” every few months. It’s typically fine to have your Mac update automatically, but there have been some features that break old apps in newer macOS builds. We would caution you to consider your needs; if you can’t risk apps not working or perhaps files being shifted around, we would advise against automatic updates.

But for most, it’s fine to automatically upgrade your Mac. Here’s how:

1. From the menu bar on your Mac, select the Apple icon on the top left
2. Select “Software Update”
3. Select “Advanced”
4. Make sure all boxes are checked

Note: for a Mac to automatically update, it must be connected to power.

Keep in mind you have a bit of control here, too. You can choose to have your Mac check for updates automatically, but not download them. This is a smart choice for those who want a bit more control over when their Mac updates, and we prefer this option as it allows you to run CleanMyMac X before a backup with Get Backup Pro. Backing up before an update is always a smart move.

How Can I Update Drivers on Apple OS?

Drivers are what allow your Mac to communicate with peripherals like graphics cards, speakers, or printers. You can’t directly update drivers on a Mac; your best bet is to update your operating system, which has all the necessary drivers.

If you’re using a specific app to communicate with peripherals, like an app for a printer, updating the app itself may install new drivers.

Mac Won’t Update?

If your Mac simply won’t update, it’s likely a hardware issue. As we noted, you’ll need 4GB RAM and 12.5GB storage to update your Mac. If you don’t have at least that, you will be unable to run the latest version of macOS.

Your Mac may also be too old. Though the system requirements help avoid this, Apple only supports older machines for a certain amount of time; this is often because other specs, like graphics cards, are no longer adequate for newer versions of macOS.

It’s also possible the update was interrupted; this is why we advise you have a strong internet connection before updating your Mac. These are core issues with a Mac which won’t update. If you’re experiencing issues, get hold of Apple for support.

Conclusion

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New versions of macOS are exciting for Mac enthusiasts, but don’t rush to download them. Always make sure you’ve cleaned your Mac using CleanMyMac X, and back your machine up with Get Backup Pro. Another great app to download is Disk Drill, which can help you recover files you thought were lost.

All three apps are available for free as part of a seven day trial of Setapp, a robust suite of productivity apps for your Mac. Alongside Disk Drill, GEt Backup Pro, and CleanMyMac X, you’ll get unlimited access to the full Setapp library of nearly 200 excellent Mac apps.

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When the trial ends, Setapp is only $9.99 per month to retain unlimited access to the full suite of apps. For families, Setapp’s $19.99 monthly plan allows full access to Setapp on up to four unique Macs. An incredible deal – give Setapp a try today!

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How To Upgrade To Os Catalina

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A new macOS release is nearing release, and it's a big one. So big that this time it's really, completely and definitely not OS X any longer. With the death of Kexts looming and the transition away from Intel CPUs spelling disaster for Hackintoshers and multi-OS users alike, it's certainly an interesting time.

Oh, and rounded edges. So many rounded edges. Good golly.

Update 2020-11-13: For the specific steps required to get the Big Sur public release to work, I made a companion post that you can find right here.

Update 2020-11-11: This guide has been updated to support Big Sur 11.0.1 Release Candidate 2 (Beta 3).

Today I'd like to walk you through how to get Big Sur installed and up and running in a virtual machine on your Ubuntu or similar host machine. In this article I'll focus on steps and commands that are tailored towards Ubuntu 20.04, but I'm sure you'll be able to tweak things a bit to tailor towards whatever flavor you're running to get things to work similarly.

Let's get to it.

As of this writing, Big Sur 11.0.1 Release Candidate 2 (Beta 3) is the recent-most beta release. While the guide should remain useful for all subsequent releases as-well as the eventual full release, the fetch-macOS script might need updating for future beta releases and the eventual full release. Please check the relevant repositories for up-to-date information on this.

In this guide I'll assume you have already set up your host machine, including having set up QEMU, virt-manager, etc. As mentioned before, I'm focussing this guide on running Ubuntu 20.04 as the host OS.

No physical Mac needed

You do not need a physical Mac to download anything necessary to create this VM. We'll be using a few tools to fetch and extract the installer files needed right from your host machine.

Python

Be sure to have Python installed. In my case I already had Python installed but I needed to install an extra package called python-is-python2 to get certain tools to work, but you might also want to make sure python2 is actually installed.

Build tools

We'll be building a few tools from source, so we'll need build tools installed for that. To be honest I already had most of these installed, so I am probably going to miss one or two in this list. If one of the build steps later on this guide fails, it'll tell you what's missing so you can install it at that point. Please let me know if I did actually miss anything here.

Other utilities

Also be sure to install these tools if you don't have them already:

What's happening: We'll need dmg2img to convert an image file, and while 7zip is optional, it's a great compression and decompression tool that I highly recommend you keep around as it's super convenient.

Both literally and figuratively. Most of the work has been done by the amazing people who have created and keep this repository up-to-date. There's a few minor tweaks we'll make to get Beta 3 to work, which at the time of this writing isn't yet working out of the box when relying on the original repo (I have submitted a PR for this). Hopefully this'll get added soon, but for now you can head over to my fork where I've already applied the fix needed to get Beta 3 to download. The main repo has since been updated and should automatically fetch the recent-most beta.

Go ahead and download the repo to your local machine.

Open up a Terminal and from the OSX-KVM repo you have just downloaded, and run:

You should see a bunch of things fly by and the tool will start downloading a relatively humongous InstallAssistant.pkg file, clocking in at 12GB.

Note: If you have issues at this step, it is possible an incomplete plist file has been downloaded, or perhaps a complete but now out-of-date version. The tool keeps using an already downloaded file if it exists, so if you get a warning about something related to XML parsing or you're not getting the version you expect, try deleting the files found in content/catalogs/other and running the tool again.

While this is downloading, let's set up a few additional things we'll need once the download is done.

Download & build XAR

Download the XAR repository here, and open another Terminal window/tab and head over to where you have downloaded this repository. Inside, run the following:

What's happening: We head into the xar sub-directory, run autogen.sh to generate the configure script, and then build the project with make. We're not installing the tool, so the results stay contained within this folder.

Download & build darling-dmg

Download the darling-dmg repository from here, and head on over to this directory in a Terminal window. Darling-dmg is a part of Darling, a sort of WINE for macOS software, which I didn't even know was a thing that existed until I was going through this process. Regardless, we don't need the entire Darling project, so that's why we're just pulling in darling-dmg.

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If you already have Darling installed on your system, you can skip this step as you should already have darling-dmg available.

From the darling-dmg repository folder, run the following:

What's happening: We're just configuring and building darling-dmg here. We're not installing it, so the results stay contained within this folder. If the build fails, please check the results as this is probably due to a missing library. Simply look through the messages to find the library you're missing, apt install it, and try again.

By this point the download has hopefully finished, and you should have InstallAssistant.pkg sitting right there in your OSX-KVM folder. We'll have to take a few steps now to get to the actual installer image file, so let's do that now.

Make note where the XAR and darling-dmg folders are relative to your OSX-KVM folder, as we'll have to use these now.

Step 1: Extract InstallAssistant.pkg

Let's create a folder in which we'll extract all files to, to keep the repo from getting messy:

In a Terminal window opened to your OSX-KVM folder, let's now extract the PKG file:

What's happening: We're using the xar tool we build just before to extract the file by pointing to it relative to your OSX-KVM folder. The built tool should be at xar/src/xar within the folder where you have checked out the XAR repository. -x tells the tool you want to extract, and with -f filename you specify which file you want to extract from. Lastly, -C ./extracted tells it to extract the files to the specified folder we have created just previously.

After a bit, a few new files should have shown up inside the extracted folder, including SharedSupport.dmg.

Step 2: Mount SharedSupport.dmg

Now we'll use darwin-dmg to mount SharedSupport.dmg. In Terminal, run:

What's happening: We're creating a folder called tmp, which we'll use to mount the disk image to. We then use darling-dmg by referencing it from the folder we checked out its repository to, and specify we want to mount SharedSupport.dmg to the just-created tmp folder.

If this went well, you should see a few messages in your Terminal, and a newly mounted drive show up in your file manager called tmp. If you want to stick to using Terminal, you should also see these files when cd'ing into it; cd tmp && ls -la.

Step 3: Extract BaseSystem.dmg

With SharedSupport.dmg mounted, we need to extract BaseSystem.dmg, which is located inside a ZIP file. Using 7zip, run this from your OSX-KVM directory:

What's happening: We're extracting BaseSystem.dmg from a ZIP file found inside the SharedSupport.dmg image we have just before mounted to ./tmp. The ZIP file is located inside the com_apple_MobileAsset_MacSoftwareUpdate sub-directory, and BaseSystem.dmg is located in AssetData/Restore within that ZIP file. If you like, you can use your favorite file manager and archive tool to extract this directly too. The -o./extracted flag lets 7zip extract to the 'extracted' folder we have just before created, to keep our repository directory nice and clean.

Step 4: Convert BaseSystem.dmg

We'll now use the dmg2img tool to, as the name implies, convert the image to the img format, something that QEMU can actually work with. Simply run:

A moment or two later you should have the macOS Big Sur installation disk image ready to go. Exciting!

We're now done with both DMG files, so let's unmount SharedSupport.dmg and remove the tmp dir. You can now also delete both files if you like:

The OSX-KVM repository comes with a convenient shell script that you can use to easily launch the VM directly. This file has everything you need pre-configured, though the defaults are probably not ideal if you're planning to use this VM for anything more than just gazing upon it once or so. For example, only 3GB RAM is allocated to it, which is a tiny amount of course.

If you're just curious, or if you want to use this script to sort of jump-start the installation of macOS after which you'll move the disk image with Big Sur installed on it over to a more permanent VM configuration, this might be a handy starting point. Otherwise, you might want to skip ahead to the section on using virt-manager.

Method 1: For quick testing, momentary curiosity, or for use as a starting point

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The script is called OpenCore-Boot.sh and assumes you're launching it from within the repo's directory, have BaseSystem.img ready to go, have a hard drive disk image created, and have the 'default' network adapter all set up and ready to go. We're two for four here, so let's go ahead and tackle those last two bits. First, let's create a disk image we'll install Big Sur onto:

What's happening: We're using the qemu-img tool to create a new disk image called mac_hdd_ng.img that's 128GB in size. Be sure to customize the size to your liking, in case you need more (or less) space.

Note: If you get a message saying you don't have qemu-img installed, you probably didn't install qemu-utils.

Next, let's set up some basic networking so this VM can actually boot up:

What's happening: We're basically setting up and configuring a bridge network connection which VMs can use to connect to the internet. For anything beyond quick testing you'll probably want to set up a more robust configuration or pass through an actual network adapter if you have multiple, but for now this should at least get you going.

Lastly, as we kept all prepared files in a subdirectory, we should modify the OpenCore-Boot.sh script to point to the right directory. While we're in there, we might as-well update the RAM allocation, unless 3GB is enough for your specific needs of course.

You can find the reference to $REPO_PATH/BaseSystem.img on line :52. Simply update it to read $REPO_PATH/extracted/BaseSystem.img and that should be it. If you have created the qemu hard drive image someplace else or used a different name, you can update that reference on line :53. Lastly, the amount of RAM the VM will use is specified on line :21 in the ALLOCATED_RAM variable. 8192 (8GiB) might be a good choice, or 16384 (16GiB) if you can spare it and are planning to do Mac/iOS development for example.

Now you should be able to boot up the VM for the first time! To start it, just run OpenCore-Boot.sh from a Terminal window, and a QEMU remote viewer screen should show up soon thereafter.

After a brief moment, a familiar screen will show up with a few options. Simply hit enter to boot the first option (called macOS Base System), which is the installation disk image.

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Note: The OpenCore configuration included with this repository has verbose mode enabled, so you'll be seeing a lot of messages run by as the system (and the installer) boot up. This is normal and intended. You'll be able to modify the OpenCore configuration file to disable this should you want to, but that's outside the scope of this already rather lengthy article :).

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From here you can proceed as you normally would. Before you start with the installation, be sure to launch into Disk Utility the first time so you can format the disk image.

After selecting and launching Disk Utility from the main menu, select Show All Devices from the sidebar options menu. Then, with the correct disk image selected (you can double check the capacity to make sure you're looking at the right drive), click Erase, name your drive and select your preferred options (Encrypted or not, Case-sensitive or not), and click Erase.

Note that in my case I was not able to actually start the Big Sur Beta installation on a drive that I formatted using the APFS Encrypted option. I am not sure if it was a limitation of the specific beta I was installing or something else. If you run into the same issue, try re-formatting the drive to non-Encrypted APFS. Your root drive should already be encrypted so it's probably not the end of the world, and I'm sure the non-beta version will certainly support encrypted drives again.

When you're done with that, click Done, close Disk Utility, and select Reinstall macOS from the main menu. From there you can follow the steps as you normally would.

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Note: As you probably know, at one point during installation the VM will reboot. To let it continue with the installation, at the boot selection screen be sure to select the macOS Install option, as that's the as-of-yet incomplete installation of macOS on the hard drive.

After about an hour or so of you should be greeted with the welcome stuff, where you can set up your user account and whatnot. And after that, well, get ready for border radii to dazzle you with their roundedness.

At this point you should have a working macOS Big Sur VM. Congrats! But it might not be the most elegant of setups. You'll have to use OpenCore-Boot.sh to launch the VM every time, and you'll probably notice that macOS itself feels rather sluggish too. The latter is due to the lack of any form of hardware acceleration, something you can only really fix by passing through a graphics card. That topic and several more might be interesting as a follow-up articles, so if you'd like to see that, please let me know.

I hope this was useful for you and that this guide has helped you get to a working virtual machine. Enjoy, and happy coding!

Thank you.