On Fri, 2021-03-26 at 23:36 -0400, R. G. Newbury wrote:
> Subject: Identifying what is accessing a USB device.
> I have an external USB-3 2-disk docking station, and a script which
> can
> power up and down the drives as needed.
>
> I have a systemd automount unit that correctly powers up the dock
> when
> accessed, then mounts the drives (thanks Ed).
>
> After an idle time, automount unmounts the drives. A script detects
> when this happens and powers them down ... *at which point they
> immediately power up again, and remain up until I intervene
> manually,
> even though they are unmounted*.
>
> This never happens if I run the script directly from the command
> line
> (i.e. the drives power down and stay down).
> I'm open to suggestions if anyone has any ideas.
The systemd service unit has a Restart=on-failure, or a
Restart=always
line???
No, nothing like that.
poc