On pe, 24 helmi 2017, Oucema Bellagha wrote:
while I'm trying to add an ipa token to freeipa server: ipa
otptoken-add-yubikey --slot=2
I got the following error:
ipa: ERROR: non-public: ValueError: No backend available
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/ipalib/backend.py", line 137, in execute
result = self.Command[_name](*args, **options)
File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 449, in
__call__
return self.__do_call(*args, **options)
File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 477, in
__do_call
ret = self.run(*args, **options)
File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 800, in run
return self.forward(*args, **options)
File "/usr/lib/python2.7/site-packages/ipaclient/plugins/otptoken_yubikey.py",
line 120, in forward
yk = yubico.find_yubikey()
File "/usr/lib/python2.7/site-packages/yubico/yubikey.py", line 229, in
find_key
YK = YubiKeyUSBHID(debug=debug, skip=skip)
File "/usr/lib/python2.7/site-packages/yubico/yubikey_usb_hid.py", line 165,
in __init__
if not self._open(skip):
File "/usr/lib/python2.7/site-packages/yubico/yubikey_usb_hid.py", line 447,
in _open
usb_device = self._get_usb_device(skip)
File "/usr/lib/python2.7/site-packages/yubico/yubikey_usb_hid.py", line 497,
in _get_usb_device
find_all=True, idVendor=_YUBICO_VID)]
File "/usr/lib/python2.7/site-packages/usb/core.py", line 864, in find
raise ValueError('No backend available')
ValueError: No backend available
ipa: ERROR: an internal error has occurred
how can I fix this?
Install actual libusb package?
pyusb is designed to work against various usb library implementations.
In Fedora there are at least two: libusbx and libusb. Install one of
them.
What the following small python script does return on your system?
------
from usb.libloader import locate_library
print locate_library(('usb-1.0', 'libusb-1.0', 'usb'))
print locate_library(('usb-0.1', 'libusb-0.1', 'usb'))
-------
--
/ Alexander Bokovoy
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