i managed to boot urbackup.iso from PXE to restore many stations without burning CDROM …
If your network card is managed by UrBakup-Live-Restore, then from a tftp server you can :
You can also use the latter debian 7 network install ISO vmlinuz and initrd. The benefit is this enables you to use hostnames and supporting later hardware. I also use the toram option and load over http which is faster than tftp - probably not a big issue for such a small image but it helps.
The methods listed above unfortunately do not work (for me).
There is my way with iPXE loader and fast HTTP server. This solution also work with UEFI system too. It work fine with current Urbackup restore disk 2.1.1.
Unpack current *.iso restore CD and copy content to your HTTP server in /.
I spent a lot of time before I could find a solution for downloading workstation on UEFI - if I could help you - can thank me in BTC 3M1Q6zMsQV4P2ESeG57o2T9ZXf6pVtRzuz