No it won't :) No Mac will boot from an OS older than what it shipped with. No Cube shipped with anything earlier than 9.04, so you'll either need to boot from the System Install CD that came with your Cube (which has a bootable OS on it - but has a ROM file specific to your Cube so it can't be used to install on a different computer) or boot from a 9.1 retail CD. Laurie -- AOL IM/iChat: cubeownernyc http://www.cubeowner.com Home of The Mac Cube FAQ! On 2/2/03 6:55 PM, tmandesign at mac.com typeth: > try zapping the PRAM. 9.0 will boot for sure. > > tony > > On Sunday, February 2, 2003, at 07:51 AM, Kenneth Strain wrote: > >> I want to to a system install of OS 9.0 onto a firewire drive that >> will end >> up in my cube, and it says I have to boot from the CD. Try as I might, >> despite switching to the Mac OS All set of extensions, turning off >> Techtool >> System Protection, and following instructions, my computer refuses to >> boot >> from the CD when I hold down "C". Is OS 9.0 incompatible with the >> Cube? >> >> -Ken