Failed to install MacOs Catalina

Hey crisfabr,

Thanks for using Apple Support Communities! I understand you're getting an error when attempting to install macOS Catalina. I definitely want to make sure you're able to use the latest and greatest macOS, and I'm happy to help.

To start, ensure that any external hard drives, audio devices, and other peripherals are disconnected before attempting to install again. If you get the same error, attempting to complete that install in a new user would be a great next step. You can see how create a new user here: Set up users, guests, and groups on Mac

If you're still unable to complete the install in a new user, use the steps in the link below to repair the disk, and try once again. Let us know if the same or different error occurs, and we'll go from there.

Repair a storage device in Disk Utility on Mac

Thanks again, and have a great day!

I have tried the steps above and getting the same error.

Tried repair disk. Tried redownloading. Tried wiping the drive and starting again from scratch. Still getting the error.

Any thoughts? Its a 15" 2019 model.

The Mac Pro mid 2012 is not supported in MacOS 10.15.

https://support.apple.com/en-us/HT210222

I tried formating and reinstalling, but unable to do it, getting error message stating the update cannot be verified. I have tried multiple times and same error. I have a Mac Pro mid 2012.

Tried all of these solutions but still not working.

@jessteen, I'm having very same issue on 15" from 2018.

Same issue on my 15" 2018. Upgraded from a 2011 MBP and thing was way less of a headache.