It also happens with f22:
...
Jul 30 06:06:55 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:55 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:55 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:03 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:03 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:03 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:05:12 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:05:12 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
# uname -a
Linux gunvald1 4.1.2-200.fc22.i686+PAE #1 SMP Wed Jul 15 20:30:12 UTC 2015 i686 i686 i386 GNU/Linux
Reopening.
It also happens with f22:
...
Jul 30 06:06:55 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:55 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:55 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:03 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:03 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:06:03 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:05:12 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
Jul 30 06:05:12 gunvald1 systemd-udevd[524]: error: /dev/sdb: No medium found
# uname -a fc22.i686+ PAE #1 SMP Wed Jul 15 20:30:12 UTC 2015 i686 i686 i386 GNU/Linux
Linux gunvald1 4.1.2-200.