MacOS Catalina 10.15.7 stuck while installing ....

Discussion in 'macOS Virtual Machine' started by ReynierP, Nov 26, 2020.

  1. ReynierP

    ReynierP Member

    I have an iMac Late 2013 and therefore Big Sur is not supported (sadly for me and many others :(). I would like at least to test Big Sur in a Parallels VM but I am unable to install Catalina 10.15.7 so I can upgrade inside the VM. How I can install Cataling properly inside the VM?? See the attached screenshot for more info

    Attached Files:

  2. RichardB44

    RichardB44 Bit poster

    This is a pretty late reply and I'm sure you have it working by now, but for others following the same path...
    I had this issue upgrading macos 10.14 Mojave to 10.15.7 Catalina in the VM, and it hung indefinitely as in your screen shot.
    I fixed it by disconnecting the VM's network (menu bar Devices -> Network -> Disconnect) and rebooting. Then the upgrade screen appeared again but this time the thermometer was moving properly and it was showing the time remaining (which was now counting down).
    Maria@Parallels and ReynierP like this.

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