This has been going on from almost the begining of Alpha-rc.
It is a dracut bug
Anyway, the initrd gets built at about 15MB vs. 3MB
and prevents the SELinux policy from loading by chroot.
It can not be fixed without mkintrd -f /boot/initrd...img 2.6.31-0..as shown in the bug report.
The selinux-policy will be loaded
The file systems relabeled
an autoreboot may occur
The system boots as you have your
turn it on with
make it permenent with semanage