You have just installed a new network card on RHEL 5 server. When the server is booted up, it does not appear to recognize the new card. What steps do you take to diagnose and correct the issue?
Typically this is a driver issue. Check first that the card is visible on the PCI bus with „lspci‟.
Check to see if necessary kernel modules are loaded (with „lsmod‟). If they are not, they may need to be added to /etc/modprobe.conf. After which it is usually best to rebuild the init root disk (with „mkinitrd‟).
If the candidate suggests getting the module from HW vendor keep asking to see if the candidate is familiar with the “tainted kernel” concept.