SD no longer honouring backup-on-mounting-drive

[Manu Chao]

Originally Posted by dnanian

Nothing happened about two weeks ago that preceded these failures?

Apart from the year changing from 2012 to 2013, no. Maybe there was an OS crash (requiring a forced shutdown) in between, I had one recently (in the last couple of weeks) but I cannot remember exactly when that was.

So, if this is not a problem frequent enough that some possible causes are known that could suggest a course of action, I will try the usual: re-install the SuperDuper and try a new OS user account.