I tried to do the trick where you just copy over a version of your Bitcoin Core ~/.bitcoin folder from before the fork date (so you don't need to resync the entire blockchain, this worked for the Bitcoin Cash fork) and it did not work for me here with Bitcoin Gold.
Should it have?
Yeah, that didn't work for me either. The best I could come up with was bootstrapping from my Bitcoin node (running and listening on the default port 8333). The command I used was
$ ./bgoldd -rpcport=8339 -connect=localhost:8333 -bootstrap -skiphardforkibd
This took about an hour. I was able to check my progress with:
$ ./bgold-cli -rpcport=8339 getinfo