Nussbaumer Raffael (ID S4D) wrote:
Hi Jean-Pierre
What is the difference of behavior you observe ?
How do you start ntfs-3g ?
I'm using shell_exec() php function to start a script in which ntfs-3g is used.
On my old server (Ubuntu 16.04) which came with ntfs-3g version 2015.3.14,
running the script with sudo worked. (Image got mounted)
On my new server (Ubuntu 18.04.2) which comes with ntfs-3g version 2017.3.23,
running the script with sudo doesn't work anymore. Later on I installed
(2017.3.23AR.4)
In the script itself ntfs-3g is started like this: /bin/ntfs-3g -o ro
/mnt/sdb1/$RestoredImage /mnt/ImageMountPoint/$2
I have no idea what could explain the change of behavior. You would
have to install 2015.3.14 on your new server to confirm this is
caused by a change in ntfs-3g.
A possible direction : unmounting within a script generally
appears as not working because umount is not synchronous, and,
when the script terminates, it kills the unmount process before
the unmounting takes place.
In such a situation, a subsequent mount is rejected, unless
both mounts are read-only (which you hinted to be useful).
Jean-Pierre
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