How to update sierra to catalina9/11/2023 Both methods seem to fail at the same point, after the first reboot of the macOS installer. When the M4 voumes mount, I can see the target Catalina volume has a folder written called "macOS Install Data".Īnyone have any idea why I am not able to install macOS Catalina onto this Pegasus2 M4? I tried the installation by running the macOS installer from the internal SSD, as well as creating a USB macOS install disk. The Mac simply boots back up from it's internal SSD, and back into macOS High Sierra. I expect the Mac to reboot, and resuming installing Catalina, but that is not what happens. The rest of machine is intel 9900K on Gigabyte z390 aorus pro, Samung Evo 970 ssd. I finally need to upgrade it so just purchased a Sapphire RX580 to replace geforce 980ti. The installer runs for a few minutes, then reboots as expected. I had a happy high sierra install for the last few years. I have the current 10.15.1 macOS Catalina installer (from the App Store), which I opened and pointed to the aforementioned 4TB APFS volume. I am able to use Disk Utility to wipe one of the 4TB disks, and created a 4TB APFS container. I have the M4 connected via Thunderbolt to a late 2013 15" MacBook Pro, which is running macOS High Sierra (10.14.6). Head to the Mac App Store, and in the left sidebar tap Updates. I was asked by someone to install macOS Catalina on a volume in a Pegasus2 M4. After you've completed your preparations, you're ready to download and install Catalina.
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