Sadly, mine has turned into something a little more serious. I attempted the bootstrap (it turns out unnecessarily) and still had not luck after following the directions on the official RPi forums.
yeah I had mine corrupt an SD card too. Sadly after many hours of python (and no backups…=idiot) I gave up trying to recover it and moved back to my Pi3 for the time being. On the plus side, all my PI’s NOW backup hourly to an AWS S3 blob ! #lessonlearnt