How to bypass /Extra from Loading?

[MonkeyDLuffy]

Hi all,

Is there a way to bypass "/Extra" from loading at boot-up with a kernel flag?

The reason I want this is that I have installed Snow Leopard and Leopard in my external hdd.

This is how I configured my External HDD:

Partition 1 = 30gb Snow Leopard Installed and this is where /Extra is installed (Chameleon RC3 Installed)
Partition 2 = 30gb Leopard and there is no /Extra
Partition 3 = 20gb NTFS

I'm having problems booting in my Leopard partition because it loads the /Extra from the Snow Leopard partition as it was designed like that. Of course, my Leopard will have errors from the Snow kext.

If it is not possible to bypass /Extra, what other methods do you suggest?

Thank you.