Gradual staged upgrade of my Arch system from 2012-05 to 2012-07-30 using https://wiki.archlinux.org/index.php/Downgrading_Packages#ARM as a repository.
First to verify the whole process works disable other mirrors and add:
Secondly to set-up the new netcfg changes brought by May 13 I'll upgrade to May 14:
Not to forget
mkinitcpio -p linux after that one!