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* Behavior of 'mount --bind' and umount
@ 2013-12-27 17:18 Nicolas Dichtel
  0 siblings, 0 replies; only message in thread
From: Nicolas Dichtel @ 2013-12-27 17:18 UTC (permalink / raw)
  To: linux-fsdevel

Hi all,

I've a question about this command.
Let's take a simple test:
$ touch foo
$ echo foo > foo
$ touch bar
$ mount --bind foo bar
$ cat bar
foo
$ umount foo

On some files system/distribution/kernel, the last command returns an error
(on debian for example):
$ umount foo
umount: foo: not mounted

or unmount bar (on ubuntu for example):
$ umount foo
$ cat bar
$

I did not find the reason of this difference, any help is welcome.


Thank you,
Nicolas

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