Mounting an internally installed disk on a laptop spins up all disks connected to this machine via USB. And I try to prevent these externally connected disks to spin up. The behaviour, IIRC, started a few months ago on the previous F27 and continues now on F28. Before that I don't remember this behaviour to have happened. I thought it was some smartd issue, and stopped this service ("/usr/bin/systemctl stop smartd.service") - to no avail: mounting the internal disk still spins up the external ones. The internal disk is identified by "smartctl -d test /dev/sda" like so: [ ... ] /dev/sda: Device of type 'scsi' [SCSI] detected /dev/sda [SAT]: Device open changed type from 'scsi' to 'sat' /dev/sda [SAT]: Device of type 'sat' [ATA] opened (On a side note: I'm astonished that a smartctl simple info flag is changing some device type like shown above) External disks are identified by a smartctl test like so: One: "[USB Sunplus]: Device of type 'usbsunplus' [ATA] detected" the other one: "[SAT]: Device of type 'sat' [ATA] detected" Anyone an idea about where to start investigating this issue? Where could such behaviour possibly be set up? Thanks in anticipation. Wolfgang _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx