A customer reported that on his Fedora 16 x86_64 Linux workstation he could not obtain any hostid using the flexlm utility lmhostid or our hostinfo.
uncomment the line following..
"# uncomment the next line for biosdevname to be off by default".
Then, cd /etc/sysconfig/network-scripts/
cp ifcfg-em1 ifcfg-eth0
Edit the "ifcfg-eth0" file to change "em1" to "eth0".
Finally Reboot and try the hostinfo or lmhostid again.