[Newby]

unfortunately nothing works, and here are the error messages:

Unable to open device <calibre.devices.eb600.driver.COOL_ER object at 0xa4a824c>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the COOL_ER disk drive.

Unable to open device <calibre.devices.eb600.driver.ITALICA object at 0xa4a830c>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the ITALICA disk drive.

Unable to open device <calibre.devices.eb600.driver.ECLICTO object at 0xa4a832c>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the ECLICTO disk drive.

Unable to open device <calibre.devices.eb600.driver.DBOOK object at 0xa4a834c>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the DBOOK disk drive.

Unable to open device <calibre.devices.eb600.driver.INVESBOOK object at 0xa4a836c>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the INVESBOOK disk drive.

Unable to open device <calibre.devices.eb600.driver.BOOQ object at 0xa4a83ac>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the BOOQ disk drive.

Unable to open device <calibre.devices.eb600.driver.EB600 object at 0xa4a83cc>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the EB600 disk drive.

Unable to open device <calibre.devices.eb600.driver.MENTOR object at 0xa4a864c>
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 162, in do_connect
File "site-packages/calibre/devices/usbms/device.py", line 689, in open
File "site-packages/calibre/devices/usbms/device.py", line 609, in open_linux
File "site-packages/calibre/devices/usbms/device.py", line 507, in find_device_nodes
DeviceError: Unable to detect the MENTOR disk drive.