I can give it a shot in a few days. Loading older pxelinux and pointing it to current configs seems to resolve the issue.
#!ipxe
dhcp set 210:string http://archive.ubuntu.com/ubuntu/dists/utopic/main/installer-i386/current/images/netboot/ # chain ${210:string}pxelinux.0 chain http://archive.ubuntu.com/ubuntu/dists/trusty/main/installer-i386/current/images/netboot/pxelinux.0
The vesamenu.c32 cannot be loaded due to incompatibility, so there is only text-mode menu prompt from pxelinux. But system is installable this way.
I can give it a shot in a few days. Loading older pxelinux and pointing it to current configs seems to resolve the issue.
#!ipxe
dhcp archive. ubuntu. com/ubuntu/ dists/utopic/ main/installer- i386/current/ images/ netboot/ pxelinux. 0 archive. ubuntu. com/ubuntu/ dists/trusty/ main/installer- i386/current/ images/ netboot/ pxelinux. 0
set 210:string http://
# chain ${210:string}
chain http://
The vesamenu.c32 cannot be loaded due to incompatibility, so there is only text-mode menu prompt from pxelinux. But system is installable this way.