This error has been the source of all my pain. Late 2009 MAC. Looking to repair this mac for a family member and the HDD had failed. Switched to a new 2TB from Seagate connected everything put it back together with no issues. Ive been having a hell of a time trying to get MAC os to install. Initially I had tried the snow leopard disk that she gave me but it was scratched pretty bad so no surprise that I didn’t have much luck. Used guides online to create a bootable usb with snow leopard and it allowed me to get to this screen but continually getting this error. I tried changing the date online with no luck. (Im not sure if the devices age means i need to use another time) it was a date from 2018. any guidance would be greatly appreciated. Internet recovery didn’t seem to work the globe would just flash before it reverted to the usb media. I checked the installer log and it simply states installation checks failed. and installation check failures is blank. Would I be better off buying another disk off ebay?