Technical:Booting:ISA

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Booting Clients With ISA NICs

ISA Network Interface Cards are not automatically detected by the LTSP kernels (PCI NICS are). Specifying the client ISA NIC in your dhcpd.conf file can help you overcome this issue.

For example if we have a client system with a 3com 3C509B-TPO ISA NIC we would need to modify the dhcpd.conf file accordingly:

Add the following two lines after the "option root-path" in /etc/dhcpd.conf 

     option option-128 code 128 = string;
     option option-129 code 129 = text;

...and a section specifically for our particular client in question: 

     host ws004 {
         hardware ethernet     00:A0:24:A3:14:19;
         option option-128     e4:45:74:68:00:00;
         option option-129     "NIC=3c509";
     }

A quick "service dhcpd restart" from the command line and this client should boot away...

Explanation of the above items:

  • hardware ethernet = MAC address of the ISA NIC
  • option-128 = Crucial line for ~EtherBoot, enter it exactly "e4:45:74:68:00:00". This is not a MAC address.
  • option-129 = ISA NIC driver

For more information see http://www.ltsp.org/instructions-3.0.html

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