I could immediately reproduce with the mini image. The Disco mini image [0] works fine.
[0] http://ports.ubuntu.com/ubuntu-ports/dists/disco/main/installer-ppc64el/current/images/netboot/mini.iso
I could immediately reproduce with the mini image. The Disco mini image [0] works fine.
[0] http:// ports.ubuntu. com/ubuntu- ports/dists/ disco/main/ installer- ppc64el/ current/ images/ netboot/ mini.iso