Solution 1:
It would appear the issue is with compatibility, it is a Mid-2011 27 iMac so no longer supports Mojave or Catalina
https://eshop.macsales.com/guides/Mac_OS_X_Compatibility
Damn.
Samsung SSD with Catalina or Mojave
Solution 1:
It would appear the issue is with compatibility, it is a Mid-2011 27 iMac so no longer supports Mojave or Catalina
https://eshop.macsales.com/guides/Mac_OS_X_Compatibility
Damn.