Network interfaces do not come up and ifconfig does not show all interfaces
Issue
- Network interfaces do not come up and
ifconfig
does not show all interfaces ifconfig -a
is missing some devices/interfaces-
ifup
fails with error:# ifup <INTERFACE> <INTERFACE>: unknown interface: No such device
Environment
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
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