Re: [Bug-tar] --one-file-system and "file changed" warning for mountpoint

[Nathan Stratton Treadway]

On Sat, Nov 25, 2017 at 01:43:32 -0500, Nathan Stratton Treadway wrote:
> When I back up these systems with GNU tar using --one-file-system, I get
> the following confusing messages:
> ======
> # tar --create --one-file-system --warning=no-file-ignored --verbose --file 
> t.tar /var/lib  1>/dev/null
> tar: Removing leading `/' from member names
> tar: /var/lib/lxcfs/: file is on a different filesystem; not dumped
> tar: /var/lib/lxcfs: file changed as we read it
> ======
> 
> 
> Obviously this particular file system is an extreme case, but seeing the
> above output at all made me wonder whether it would just generally make
> sense for tar to avoid performing the "file changed as we read it" check
> for directories that it has just skipped due to the one-file-system
> check?

(Bumping this thread:)

Does anyone know of a reason that tar needs to perform the file-changed
check on directories that it has skipped due to --one-file-system...?

Thanks.
                                                Nathan

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