No luck here. Real Macbook Pro Retina (2012 model) went into kernel panic - reboot loop after the second reboot, while Lenovo Legion Y530 hangs after first reboot with status bar not moving. Reverted to Mojave on both.
Just updated to Catalina too. Didn't need to update anything, noticed that the installation after reboot, appeared to 'hand' on 16min remaining, but I left it and it everntually completed. Took about 30 min.
After the upgrade is complete, I stuck in the login interface. My mouse and keyboard lost response after a few seconds. It seems that the system also lost response. After reconnecting the keyboard and mouse, the power is off. My clover is v2.5 5027.
I can login by safe mode. After I login, it seems that there are some cartons on the graphics card. There is an additional folder of the migrated project on the desktop, which contains HIDPI files. It seems that I have opened the HIDPI cause. I hope someone can help me.