I'm trying to create a chroot for my rooted android phone. I want to do this with the
arch_bootstrap.sh script found on the wiki but I can't find an ARM repository.
My PC is x86_64 Arch Linux and my mobile is a HTC Desire running Cyanogenmod 7
No. There is no official Arch Linux repository for ARM. However, there is a fork of Arch for ARM: http://archlinuxarm.org/