Thank you Patick
I didn't know fstab can be used to prevent mountage USS HD .....thank you for the advice.
In every case is better to do it by the script.
My empiric rule works... and I'continue to use it :-).
Still thank you
Angelo
On Mon, Jul 13, 2020, 00:16 Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote:
On Sun, 2020-07-12 at 10:10 +0300, Angelo Moreschini wrote:
> Hi,
>
>
> I made a script that (using rsync <linux utility>) run a backup of some
> (particular) data of my computer.
>
> I use an external USB-HD to store data of the backup and, of course, I need
> to mount this HD-device before.
>
>
> A problem come because systemd-udevd automatically mount plugged USB
> devices when they are connected to computer.
>
> I my “simple” mind, I fund that this automatically mounted point is”
>
> */run/media/$USER/partition_label (...this says Gparted…).*
You can change that by adding an fstab entry. I use this for example:
UUID=6cb66da2-147a-4f3c-a513-36f6164ab581 /raid ext4 rw,noauto,user 1 1
and the mount happens automatically when the device is plugged in.
> This in OK! (this is working) ! But this is only a my empiric solution to
> the problem, and looking for <”linux how to manually unmounting the
> automatically mounted usb device by system-udevd”> I didn't find nothing
> *exactly* appropriate for my problem.
>
>
> I know that are different solutions (using udev rules) to manage the
> automatic montage of devices, but since I already have a good script that
> work, I only would like find an “official instruction” for the problem to
> manually unmout automatically mounted USB devices by systemd-udev.
How does the system know to unmount the drive unless you tell it? There
are some ways to handle putting disks into standby mode after a timeout
(see udisks(8)) but it's not clear if they'll work with USB devices.
In my case, I just explicitly unmount the drive within the backup
script. I don't know if there's really a better way to do it.
poc
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