On Fri, 2021-03-12 at 19:36 +0800, Ed Greshko wrote: > On 12/03/2021 19:18, Patrick O'Callaghan wrote: > > On Fri, 2021-03-12 at 17:01 +0800, Ed Greshko wrote: > > > On 11/03/2021 21:14, Patrick O'Callaghan wrote: > > > > Someone on the SystemD list suggested using an @reboot line in crontab > > > > for this, as a special case. > > > While I didn't think of that option, I somehow got the impression that > > > you needed/wanted to run a script of > > > some sort each time the share was mounted and unmounted. > > I do. The @reboot suggestion is only a partial solution. Given that the > > drive is automatically powered up on reboot (there seems to be no way > > to prevent this as it's triggered by the system scanning the USB bus) I > > need to be able to power it down, but currently there's no systemd > > mount event to cause this to happen. No doubt there's a more elegant > > way around this, but baby steps ... > > Well, if it can't be done with systemd then a possible inelegant solution is > to have a > "watcher" background process (or cron job that run periodically) that checks > to see if > the share has gone from a mounted to unmounted state and then run the > appropriate > script?
Of course. In the pre-systemd days that would have been the obvious choice. I just thought systemd was supposed to make things more organised, but I'm starting to wonder. I don't want to come across as a systemd sceptic, but IMHO its highly modular structure is reflected in the scattered nature of the documentation, which is a major impediment to really understanding it. > Does something need running when the share goes from unmounted to mounted? Just a timer. Once it's powered up and mounted, it should stay that way until an idle timeout is triggered. > I suppose this kind of thing is one reason I'm happy I opted for a NAS. It > runs a RAID > configuration and can be configured to power down disks when idle. :-) :-) The disks I'm using were actually cannibalised from a NAS that died (after about 10 years use). I stuck them in a dock and aside from this issue they work well. The dock itself does power down after 30 minutes disconnection, but of course while it's mounted that won't happen. I need a script to unmount and then force the disconnection. The script itself works, I just want it to happen automatically. poc _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
