When you use the erase-install package and I'm using it so the message is the full screen. When the full screen is used, does it stay up until the device restarts? I'm trying it in test mode, but the full screen only stays up for 30 sec and it goes back to the desktop. Could that be because I'm testing it? One of our issues is, when we have users kick it off using the --depnotify, they see the prompts and after the last one, some have been restarting it even though we've told them let it sit. Below is what I was testing.
/Library/Management/erase-install/erase-install.sh --reinstall --pkg --version=12.6.2 --min-drive-space=35 --current-user --fs --cleanup-after-use --test-run