Shouldn't GNU tar be ignoring /proc with --one-file-system?

Matthew Seaman m.seaman at
Fri Nov 18 17:27:20 UTC 2011

On 18/11/2011 17:18, Michael Sierchio wrote:
> On Fri, Nov 18, 2011 at 8:59 AM, Daniel Staal <DStaal at> wrote:
>> > /proc is a file on /.  /proc/* are files on /proc.  The former is still on
>> > the root filesystem (if only as a directory stub to be used as a
>> > mountpoint), so reading it isn't leaving that filesystem.  Reading
>> > anything *in* it would be.
>> >
>> > Just a thought.

> And a good one.  Yes, that's it.  It isn't crossing the mount point,
> but the mount point is part of the root filesystem.

I find it quite astonishing that /proc would deliberately behave
differently to *every other* filesystem available.  The mountpoint
should belong to the filesystem mounted on it.



Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
                                                  Flat 3
PGP:     Ramsgate
JID: matthew at               Kent, CT11 9PW

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