So listing ob usb stick plug unplug
cat 2.txt | grep usb
Feb 14 15:41:42 tuap kernel: usb 1-4: new high-speed USB device number 12 using xhci_hcd
Feb 14 15:41:42 tuap kernel: usb 1-4: New USB device found, idVendor=1f75, idProduct=0917, bcdDevice= 0.01
Feb 14 15:41:42 tuap kernel: usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Feb 14 15:41:42 tuap kernel: usb 1-4: Product: Intenso Ultra Line
Feb 14 15:41:42 tuap kernel: usb 1-4: Manufacturer: Innostor Technology
Feb 14 15:41:42 tuap kernel: usb 1-4: SerialNumber: 14110400005124
Feb 14 15:41:42 tuap kernel: usb-storage 1-4:1.0: USB Mass Storage device detected
Feb 14 15:41:42 tuap kernel: scsi host7: usb-storage 1-4:1.0
Feb 14 15:41:42 tuap mtp-probe[203740]: checking bus 1, device 12: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4"
Feb 14 15:41:42 tuap mtp-probe[203754]: checking bus 1, device 12: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-4"
Feb 14 15:41:44 tuap usbmount[203812]: /dev/sde1 does not contain a filesystem or disklabel
Feb 14 15:41:44 tuap systemd-udevd[203757]: sde1: Process '/usr/share/usbmount/usbmount add' failed with exit code 1.
Feb 14 15:41:49 tuap usbmount[203909]: executing command: mount -tvfat -osync,noexec,nodev,noatime,nodiratime,gid=users,dmask=0007,fmask=0117 /dev/sde2 /media/usb0
Feb 14 15:41:49 tuap usbmount[203920]: executing command: run-parts /etc/usbmount/mount.d
Feb 14 15:41:51 tuap kernel: usb 1-4: USB disconnect, device number 12
Feb 14 15:41:59 tuap systemd-udevd[203737]: sde3: Process '/usr/share/usbmount/usbmount add' failed with exit code 2.
Feb 14 15:41:59 tuap usbmount[204940]: executing command: umount -l /media/usb0
Feb 14 15:41:59 tuap usbmount[204943]: executing command: run-parts /etc/usbmount/umount.d
and on sd card:
cat 3.txt | grep usb
mylo@tuap:~$
so nothing (tested 3 sd cards).