How to check if device is busy without unmounting?

To: "debian-user." <debian-user@lists.debian.org>
Subject: How to check if device is busy without unmounting?
From: Dotan Cohen <dotancohen@gmail.com>
Date: Mon, 17 May 2010 02:05:01 +0300
Message-id: <[🔎] AANLkTilwbCPenwuvyT0vd-zPrhv3tmLjU49hXotiqdg1@mail.gmail.com>

How can one check if a device can be safely unmounted at the moment.
Sometimes umount fails as the device is busy. Is there a way to check
if the device is busy, without unmounting? The umount manpage does not
discuss this situation.

Thanks.

-- 
Dotan Cohen

http://gibberish.co.il
http://what-is-what.com

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