Hi Christian, One more question... >> The propagation field is used to specify the propagation typ >> of the mount or mount tree. Mount propagation options are >> mutually exclusive; that is, the propagation values behave >> like an enum. The supported mount propagation types are: The manual page text doesn't actually say it, but if the 'propagation' field is 0, then this means leave the propagation type unchanged, right? This of course should be mentioned in the manual page. Cheers, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/