Why does Red Hat Enterprise Linux 7 installer is detecting 8 NIC cards instead of four which are present?

Solution Unverified - Updated -

Issue

  • After installing Red Hat Enterprise Linux 7.0 using kickstart file, the four NICs are there but it shows 8 in total. Why?
[root@RHEL7 ~]# ifconfig -a | grep BROADCAST
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
6: enp2s0f4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
7: enp2s0f5: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
8: enp2s0f6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
9: enp2s0f7: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
  • So all the usual eth interfaces exist, which is good, but then have got these other 4. They're also using predictable network names too, as be can seen.
  • The hardware used is HP BL460c blades that have a FlexLOM port, so the NICs are virtual.

Environment

  • Red Hat Enterprise Linux 7
  • HP BL460c blades with FlexLOM

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