slave mounts, private mounts

[Volker Wysk]

Am Sonntag, den 26.01.2020, 14:28 +0100 schrieb Tom H:
> On Sat, Jan 25, 2020 at 8:39 PM Volker Wysk <post at volker-wysk.de>
> wrote:
> > 
> > I'm trying to do a slave mount, or a private mount, but both don't
> > work.
> > 
> > The mount manpage says: "A slave mount receives propagation from
> > its
> > master, but not vice versa. A private mount carries no propagation
> > abilities."
> > 
> > Here's how to try it out:
> > 
> > # cd /tmp
> > # mkdir a b
> > # touch a/x
> > # mount --rbind --make-rslave a b
> > # ls a/* b/*
> > a/x  b/x
> > 
> > A change in the new mount should not be propagated to the old one,
> > but
> > it is:
> > 
> > # touch b/y
> > # ls a/* b/*
> > a/x  a/y  b/x  b/y
> > 
> > With a private mount it's the same:
> > # umount b
> > # rm a/y
> > # mount --rbind --make-private a b
> > # touch b/y
> > # ls a/* b/*
> > a/x  a/y  b/x  b/y
> > 
> > What have I done wrong? I've studied the manpage and searched the
> > web,
> > and it looks like it should work exactly like I've tried...
> 
> It's further sub-mounts not anything else that aren't propagated.

Again, thank you.

Volker