On Sat, 2020-06-27 at 14:15 +0200, Markus Schönhaber wrote: > 26.06.20, 22:33 CEST, Patrick O'Callaghan: > > > In other threads I've mentioned I have a USB-powered external SATA > > dock, which I'm using mainly as a backup device. Currently, I have a > > script to power it down by doing this sort of thing: > > > > echo 1 > /sys/block/sdd/device/delete > > > > I can then turn it on again using: > > > > echo "- - -" > /sys/class/scsi_host/host6/scan > > > > This works, but is a kludge. A cleaner way would be to use: > > > > udisksctl power-off -b /dev/sdd > > > > This works too, but unfortunately also removes the /sys/block/sdd > > files, meaning I can't turn the thing on again. However, if I > > physically switch it on and off, it reappears, IOW it causes a USB > > "insertion" event. > > > > Is there a way to cause an insertion event without physically doing > > anything to the dock? > > eject -t /dev/sdd > > might be worth a try. At least this (device node adapted, of course) > works for me with USB thumb drives which I "safely removed" using the > GUI. If the udiskctl command you use internally does something similar > to the GUI function, eject -t might also work for you. The problem is that the device node (/dev/sdd) is removed by the udisksctl power-off command, so this doesn't work. Thanks anyway. poc _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxxxxx
