Aha, I thought I had searched everywhere already.
Is it OK to edit that file, loader.conf, with the webgui? CR/LF and stuff like that don't get borked?
If I understand the situation correct there is a "no go" booting the live CD. Manipulating the .conf needs the possibility to write something to the startup procedure.
I'll get back to you with the progress. I'm not ready to format the disk in that machine, a hackintosh-installation which took to much time to install is there now. Going swap disk and do a install.