Why after upgrading the firmware of the NIC and then after reboot the NIC drivers got blacklisted ?

Solution Verified - Updated -

Issue

  • After firmware upgrade on ProLiant DL585 G7 , it was found that all of the network interfaces were unavailable, further debugging shown the NIC drivers are blacklisted in the file /etc/modprobe.d/blacklist.conf
  • Removing the blacklist entry , resolved the issue and the interface were brought up.
  • Why after upgrading this issue occurred ?

Environment

  • Red Hat Enterprise Linux 6.3
  • ProLiant DL585 G7

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