David Goodenough wrote:
Look in /proc/partitions when the stick is inserted, and see what partitions the kernel thinks are there. I have also met devices which were partitioned as logical partitions, so the first one was /dev/sda4.
The file /proc/partitions doesn't change whether I plug in the USB key or not. It shows five sda partitions sda[1-4] and just /dev/sda, but none of them can be mounted.
However it would also be worth investigating the hotplug error code.
Hotplug isn't installed, but the usbmgr logs as followed: usbmgr[485]: vendor:0x1370 product:0x2168 usbmgr[485]: class:0x8 subclass:0x6 protocol:0x50 usbmgr[485]: USB device is matched the configuration usbmgr[485]: Can't get module loader Should I try hotplug? Yevgen