Cannot install MacOS 26 VM on MacOS 26 Host

Parallels downloads the ~30GB image, then runs. Start up screen flashes then closes.

 

I have the same issue. The VM crashes on my M2 mac but downloads and installs just fine on my M5.

 

Same issue.

 

Turns out Parallels isn't smart enough to download a MacOS version that is SUPPORTED on the host macOS version. I needed version 26.3.1. Version downloads are here: https://mrmacintosh.com/apple-silic...4/22-,5.,UniversalMac_11.4_20F71_Restore.ipsw

 

517954463

 

Hey Chaps
Any solution to this yet?.. I am having the exact same issuue, and have tried a few times
Cannot attach the zipped logs and here is the ID: 519241963

 

Similar issue for me. Situation:

• Host: 2019 MacBook pro (intel CPU with 8 cores and 32GB RAM), freshly wiped/installed with Tahoe 26.5.1
• Parallels Desktop Pro version 26.3.3 (57507)
• Client VM: Tahoe 26.5.1 on VM with 8GB RAM, 4 cpu cores, 128MB video RAM

I've tried to install the VM 8 or 9 times to today, sometimes varying the amount of RAM or # of cores, leaving networking connected or disconnected, etc. Each try seems to hang (sometimes with a spinner dialog displayed) at a different point in the process. While I can see the default background on the VM sometimes, it quickly turns to gray or white. One time I was able to complete the install and log in, but the screen was grey with only a menu bar (no dock bar, <CMD><Space> didn't allow me to start any apps, but the system setting panel could be opened via the apple icon on the left side of the menu bar. Even then, the text in the system settings panel showed up in the various settings panes, but no graphics were showing (icons in particular).

Has anyone had any luck with this type of installation? (Tahoe 26.5.1 on Tahoe 26.5.1 -- or similar)
Does anyone have any suggestions to try for making this work? (different version of VM OS?, boot flags, etc.)

I'm using the Pro version Parallels in 2-week trial mode. Would love to buy it, but only if I can get virtual macOS working on my MacBook Pro.

Regards,
-Steve

 

Steve I had the issue with my M2 Mac and fixed it by finding a slightly older Mac version ISO from the link provided by DavidF87 above. Don't know about Intel but maybe an older ISO will work...

 

Thanks @AdrianS23 !

I tried Tahoe 26.3.1 and was eventually able to get a full install completed (!), though the install was problematic (had to do a hard reboot of the VM a few times). Now that it is running, it is still quite flakey: I'm seeing lots of crashes for iconservicesagent and Spotlight, which explains why most of the icons don't display and why I can't (for example) use <CMD><SHIFT> to start up a program. Safari also crashes randomly.

Looking at a few crash reports via the Console app, the call stacks for the crashed threads are all crashing in calls to graphic functions (e.g., "RenderBox") that are, in turn, calling "Metal" functions. I did try setting video.metal=0 in the VM boot options, but it seems like this option might be ignored? (same problems, same crash points in Metal functions). My suspicion is that this problem lies with the Parallels' interaction with Metal-4 version released with Tahoe - perhaps with the virtualization of the hardware GPU? I suppose I could try running a Sequoia VM (say, 15.7.7) to see if this helps, but I'll see if I feel like it in the next few days.

Net-net, I don't think Parallels 26.3.3 is ready to run Tahoe OS VMs, at least for my 2019 Macbook Pro (Intel Core i9)). I'd love to hear of any other experiences (successes or failures) with Tahoe VMs running on Tahoe platforms.

-Steve