Without further ado, the following was found: Issue: calls the B<mount>(2) system call → calls B<mount>(2) // (»to call a call« doesn't make sense) "B<mount> switches to the mount namespace when it reads I</etc/fstab>, writes " "I</etc/mtab: (or writes to _/run/mount>) and calls the B<mount>(2) system " "call, otherwise it runs in the original mount namespace. This means that the " "target namespace does not have to contain any libraries or other " "requirements necessary to execute the B<mount>(2) call."