[9fans] Plan 9 installation disc question

[Pietro Gagliardi]

Hello. I have a simple question about the installation disc: it  
didn't work on my iMac because it stuck on the second line with some  
four letter word followed by 0C00. I'm not sure what that means, but  
I think it is because it's trying to boot x86-32 when my iMac is  
x86-64. Is there a separate installation disc for each processor  
architecture? Thanks.