Richard, Richard Hobbs wrote:

We currently have one DHCP server, one TFTP server and one NFS server. Using these, we install 64-bit SuSE 10.0 onto all of our 64-bit machines.

However, we will soon need to start installing 64-bit SuSE onto some machines and 32-bit SuSE onto other machines.

As I understand it, the installation source (in this case the 64-bit DVD files) is specified in "/tftpboot/pxelinux.cfg/default", and while I can change this to the 32-bit DVD, I can't see an obvious way of configuring both. The DHCP Server specifies the TFTP server to boot from, and specified the kernel to boot from (in this case "tftpserver:/tftpboot/pxelinux.0").

Hmmm, I'm not sure whether I really got your problem. When the DHCP server knows the MAC-adresses of the machines it can also use a specific tftp-server and/or kernel/initrd. Just boot the 32-bit computers with kernel/initrd and the 64-bit computers with kernel64/initrd64. In your case you also need to specify the installation source, e.g. by putting an info-file into the initrd. See for example: http://marc.theaimsgroup.com/?l=suse-autoinstall&m=113042352724245&w=2 If you are using the combined 32-bit/64-bit DVD, you only need to boot the specific kernel/initrd for 32/64-bit installation. I hope I hit the point. Peter.