> Is it possible to continue an update of a mirror? It 
seems 
> interrupting the update purges files which haven't been 
> checked yet. Could use the 'do not purge' option, but 
that 
> could lead to stale files.

You can continue using the --continue switch, yes. It will 
quickly rescan the complete structure.

Note: Use 'Interrupt' and not 'Quit', it will be cleaner