When adding L:pfs_aio-handler to RDB, HDToolBox says version 18.0, but a version L:pfs_aio-handler says 18.5 - why?
By a slight error I used pfsformat on df0: instead of pf0:, with the result that df0: became unreadable of course, but no big deal. Bigger deal was that pfsformat then, since df0: was unreadable, decided to put Trashcan, Trashcan.info and a new Disk.info in my sys: instead. Well, wasn't that great.