One of my Drupal sites has been languishing on Drupal 5.
It has a lot of content, so I can’t just start from scratch. I’m considering to finally upgrade it to Drupal 9.
What would be the best and easiest path to getting all caught up?
Should I make a clone of my most recent 5 on a development machine, then install each of the next version using its upgrade method?
Can I just install Drupal 9 over my ancient Drupal 5 site on the development machine, and hammer through all of the errors until I (hopefully) get them all sorted out?
Is there a much better way?