Is discovery a live distro (that is run only from the cd, no install?)?
Anyway, when you start use the advanced option in the boot
(press F1?)
vesa mode for the graphics card (bound to be recognised)
otherwise maybe use frambuffers
You can also disable some hardware detection (during the boot)
More generally look into bootprompt parameters
Here is one ref
http://www.tldp.org/HOWTO/BootPrompt-HOWTO.html
Do not install grub or lilo on the MBR
Find some info for dual booting whereby you edit bootnfs
(or whatever the zindoze boot is called) so the zindoze
boot has a new menu to boot linux