Screen shot showing the display after a successful boot up
Entering and Saving the CPU MAC address
If it is necessary to enter the CPU MAC address, follow the instructions in this paragraph. If the
dhcpd.leases file is not loaded with the correct MAC address of the CPU, the boot up process will not
complete.
Open a new terminal on the workstation computer by right clicking on the Terminal icon on the left
side of the monitor. Once opened, the default prompt should be: "steve@steve-dell: ~$".
At the prompt type in "cd /", which will place you in the root directory. Type the command "
cd
var/lib/dhcp
" which will place you in the directory where the file "
dhcpd.leases
" resides. To edit this
file and set the correct MAC address, type the command "
sudo gedit dhcpd.leases
" enter the password
when prompted and then enter the correct 12 character MAC address into the file that was recorded
during the CPU installation described above (the MAC address should also be on a label attached to the
CPU heat spreader). Save the file and enter the password when prompted. At this point the dhcp server
must be restarted for the new MAC address to be recognized. This is done by entering the command
"
sudo service isc-dhcp-server restart
".
The screen shot below shows the dhcpd.leases file with the CPU MAC address highlighted.
