Hey I remember explicitly trying this option and the osm2pg instance died consistently after running for 4 hours. I could never figure out why. I worked on it for 4 days with no success.

I have no earthly idea how to get this to work.

Have you tried with a small extract or full planet? Processing entire dataset takes quite significant hardware, it is likely that you run into performance issues.

You might want to try with a small extract first, see how that goes.