problem with booting from HDD but on iBoot it's fine

[JasonTechie]

Thanks for your reply. I tried but nothing changed. I feel something strange. Well, if I choose wrong option in MultiBeast, Snow Leopard does not show up its login window or some functions do not work even booted via iBoot. It means the problem is just where from boot up?

OK : iBoot(CD) => SL GUID Disk (Chameleon) (MultiBeast installed correctly) => works perfectly
NG : iBoot(CD) => SL GUID Disk (Chameleon) (MultiBeast installed INCORRECTLY) => NOT work
NG : Win7 MBR Bootloader => SL GUID Disk (Chameleon) (MultiBeast installed correctly) => NOT work
NG : Win7 MBR Bootloader => SL GUID Disk (Chameleon) (MultiBeast installed INCORRECTLY) => NOT work

It could be OK if I change the boot disk from Win7 MBR disk to Snow Leopard GUID disk but I do not know how. (I know how to change the boot partition, but this case I have to change the boot disk.) I tried Boot Disk option in System Preference but it just effects Chameleon. VAIO starts from Win 7 Bootloader as usual.

How do you change the boot disk if you have more than 2 disk on your notebook? Thank you.

ahhh... so you are dual booting Windows 7 and OS X, right?

reformat the disk and install first OS X then install Windows 7. it wont work if your disk is MBR, it must be GUID.