Apple has at last released macOS Big Sur! First previewed at the Apple Worldwide Developers Conference in June 2020, and then finally released to the world in November 2020, macOS Big Sur has had the longest beta development cycle of any macOS release in recent history.
Parallels 15 (Mac): Updating macOS Catalina Beta to Big Sur Beta You’re now watching this thread and will receive emails when there’s activity. Click again to stop watching or visit your profile to manage your watched threads. You’ve stopped watching this thread and will not receive emails when there’s activity. Setup: macOS Big Sur Public Beta 1 Build 20A5343j Win 10 Ult After macOS Big Sur upgrade, VM won't start.Used commands: export SYSTEMVERSIONCOMPAT=1; open -a 'Parallels Desktop'.VM was up and Win OS started working. Restarted VM with the same procedure. VM was up and Win OS started working. Native macOS Virtualization In macOS Big Sur, Parallels Desktop offers an easier onboarding experience by using the native macOS system extensions instead of the deprecated kernel ones. Support for macOS 11.0 Parallels Desktop 16 supports macOS Big Sur 11.0, macOS Catalina 10.15, macOS Mojave 10.14, and macOS High Sierra 10.13. Parallels not only allows you to run MT4 in Big Sur but also works on M1 Macs based on Apple Silicon so you can run MT4 on M1 Macs with Parallels. Parallels allows you to run Windows and macOS simultaneously so that you can easily switch between the two operating systems at any time.
Apr 13, 2021 Apple today seeded the eighth beta of an upcoming macOS Big Sur 11.3 update to developers for testing purposes, with the new beta coming one week after the launch of the seventh beta and more than.
The silver lining: engineers at Parallels® used this time to work in lockstep with their Apple counterparts in an effort to ensure that users will have the best possible Parallels Desktop® experience once migrated to macOS Big Sur.
The greatest amount of Parallels engineering work came in response to a significant change in the underpinnings of macOS Big Sur. As a Mac user, you may have seen dialogs (like the one shown in Figure 1) when using macOS Catalina or macOS Mojave.
The change in the macOS necessitated the re-architecture of Parallels Desktop (seen in Figure 2).
While this figure illustrates what may appear to be a small change, it required the largest amount of engineering work in Parallels Desktop 16 and the equivalent of 25 man-years of engineering effort. This change means that even more of the performance and security of Parallels Desktop will be derived from Apple’s updates to the internal architecture of macOS going forward.
In addition to the work diagrammed in Figure 2, the Parallels engineers have added a number of new features to Parallels Desktop 16, and to bundled products Parallels Toolbox and Parallels Access, including:
- macOS Big Sur support
- 3D support in macOS VMs
Learn more about these features in Video 1.
Parallels Desktop is ready for you when you decide to migrate to macOS Big Sur. Let us know in the comments when you will be upgrading, and then, how the migration went!
(C) 2020 Parallels International GmbH
I finally figured this out last week and posted it to the Parallels forum. I figured I’d cross post it here as well as many of us use VMs for testing new systems, etc.:
For those who have been trying to run Big Sur as a guest OS in Parallels, this solution is clean and works:
First, I did this in Parallels 15 for Mac “home edition”. I’m running on a 2017 iMac w/ 32 GB RAM with Mojave as my system OS
Also, I saw almost every different error that people have been reporting and this method avoided all of them (so far, at least)
1. Make an installer DMG from the downloaded “Install macOS Beta” app. The technique to make one is available via Google but I used the one described here: https://developer.apple.com/forums/thread/649774. It’s a series of 6-7 command line strings but not too tough
2. Get the correct board_id and hw_model information about your particular Mac:
- In Terminal, on the Mac that’s running Parallels type (or copy/paste)( that’s a dash and lower case L, then the pipe character, FYI )
- copy the Mac-xxxxxxx text for use below
- then type:
- copy the hardware model string for use below
Parallels Macos Big Sur
3. Create a New VM in Parallels. Don’t try upgrading a previous macOS version VM. Also, unless I state otherwise, leave settings @ their default
- click the + button or select File->new in Parallels control center
- select “Install Windows or another OS from…”, click Continue
- select the DMG you created in step #1, click Continue
- name the VM and check “Customize settings before installation” & click Continue
- Parallels will open its familiar Configuration dialog:
- click the Hardware tab:
- I set the RAM to 8GB and processors to 4 - but I was being a bit paranoid. I think processors @ 2 is probably OK
- for Graphics, I set Memory to 512MB with “Scaled” graphics - again, being a bit paranoid, not certain 512MB is required
- for the Hard Disk, open Advanced Settings, click Properties and increase the size to 128GB. Click Apply, then Close
- in Boot Order, open Advanced Settings and copy-paste the following lines: (note, Parallels failed to save these lines a couple of times until I copy-pasted them one at a time and hit return after each line - go figure. If your install fails, double-check this setting)
(replace inside the quotes with your mac model from step #2 )
(replace inside the quotes with your mac board_id from step #2)
Macos Big Sur Parallels 15 Activation
Parallels 15 Macos Big Sur
- close the Configuration dialog and click Continue
- follow the instructions for normal installation going forward
- while it’s installing, call your parents and check in. they worry
?
*** Note - do NOT install Parallels Tools at any point. This is what results in the “stuck at black screen”, the “won’t let me log in, just kicks me out” problem and probably other issues. It’s also one of the reasons why upgrading a previous macOS VM fails as it probably already has Parallels Tools installed. Like me, at this point you probably just want to get Big Sur running and can live without PT until Parallels updates it.
Many of the above steps and information was gleaned from other intrepid users posting to various forums and others and I thank you all.
regards and good luck
Steve in Seattle
(not nearly as crazy here as some have reported)