Reduce an ISO size

[David Touzeau]

Dear

I have created an FAI only to run only for 64bits systems

The final ISO is about 600Mb

When i do a fait-mirror it download these packages.
Downloading packages for classes: AMD64 CHROOT DEFAULT DHCPC FAIBASE 
GRUB I386 I686 LILO SAMBA

Is there any tip/trick to reduce the ISO size by removing any i386/i586 
packages or toher package specific to not used systems ?


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