Symptom card will not start
The reason is the lack of drive firmware firmware, firmware drive firmware is generally closed source, Debian default without normal.
Internet to find firmware drive firmware.
After finding the place designated areas, usually under / lib / firmware / bnx2 / directory, and then restart the network services. NIC properly started.
Or use this method, do not know can not feasible, not to test the
https://serverfault.com/questions/721527/rtnetlink-device-or-resource-busy-dell-2950/883644