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From: Mark Felder <feld@FreeBSD.org>
To: Ronald Klop <ronald-lists@klop.ws>, freebsd-stable@freebsd.org
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Subject: Re: bsdtar POLA change in 10.0?
Date: Thu, 06 Mar 2014 07:15:04 -0600
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On Thu, Mar 6, 2014, at 7:12, Ronald Klop wrote:
> On Thu, 06 Mar 2014 14:00:22 +0100, Mark Felder <feld@freebsd.org> wrote:
> 
> >
> >
> > On Wed, Mar 5, 2014, at 6:50, Marat N.Afanasyev wrote:
> >> I wonder why
> >>
> >> bsdtar --one-file-system
> >>
> >> suddenly started to skip archiving of mount-points? And no mention of
> >> such behaviour change either in UPDATING or errata :(
> >>
> >
> >      --one-file-system
> >              (c, r, and u modes) Do not cross mount points.
> >
> > Isn't that what it's supposed to do? Skip any mounted filesystems? Was
> > it broken before? Or do I simply not understand the behavior you're
> > seeing.
> 
> The question is if the mountpoint (directory in the 'current' filesystem) 
> itself should be tarred. After untarring you can than make the same
> mounts  
> again, for example.
> 

So you're saying that if I have a disk mounted at /mnt/disk and my tar
with --one-file-system includes /mnt, the empty directory /mnt/disk will
not be in the tarball?