Using Arch Linux / XFCE, I frequently have problems with USB drives that are not properly mounted. Sometimes they automatically show up in Thunar and I can mount them with one click. However, at other times (it's about fifty/fifty) the drive is just not recognized. I have had this problem with USB External Hard Drives, USB Memory Sticks, and cameras. If the external drive is not recognized, this is the situation:
- The drive does not show up at
fdisk -lat all (it only shows my hard drives) - The drive does not appear at
/dev/disk - The drive DOES appear when running
lsusb
So there is some sort of recognition, but I do not understand why, nor do I know how to mount the drives when this happens. I just reboot and hope it works next time, which is clearly not convenient...
UPDATE
When I monitor /var/log/everything.log (no info in syslog), then I see this happen when plugging in the USB:
Dec 14 15:36:32 localhost kernel: [ 6591.042911] usb 1-3: new high speed USB device number 9 using ehci_hcd Dec 14 15:36:32 localhost mtp-probe: checking bus 1, device 9: "/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-3" Dec 14 15:36:32 localhost mtp-probe: bus: 1, device: 9 was not an MTP device This is another requested output:
$udevadm monitor monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent KERNEL[6809.192268] add /devices/pci0000:00/0000:00:1d.7/usb1/1-3 (usb) KERNEL[6809.193421] add /devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0 (usb) UDEV [6809.299246] add /devices/pci0000:00/0000:00:1d.7/usb1/1-3 (usb) UDEV [6809.306074] add /devices/pci0000:00/0000:00:1d.7/usb1/1-3/1-3:1.0 (usb)