make sure you have the new system software on a thumb drive. After you install the hd, put in the thumbdrive, itll redownload the software....from there you have a new system, so just sign on to PSN and redownload everything....if possible I recommend you hardwire the internet to the ps4 to help with dl speeds.
I have SanDisk Ultra USB 3,0 Flash Drive with me right now.
Exactly like this
Will that be all right?