I reset my mac pro to get ready for sale and now i cant get it to do anything?

[RtOsbon]

Ok so it will get online but its not responding to the command prompt to re instal my ios system

 

[bakron1]

Ok so it will get online but its not responding to the command prompt to re instal my ios system

Did you try this:

Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up.