Further notes on installing a Fedora VM

We don't currently have an install tree for Fedora on aarch64.
However I was able to build one using the following command:

sudo \
PATH=./src/sbin/:$PATH \
PYTHONPATH=./src/ \
./src/sbin/lorax \
-p Fedora -v 21 -r 21 --variant=Fedora \
--mirrorlist='http://mirrors.fedoraproject.org/metalink?repo=fedora-21檷=aarch64' \
-s 'https://archive.fedoraproject.org/pub/fedora-secondary/development/rawhide/aarch64/os/' \
/tmp/tree

Notes:

(1) The version of lorax in Fedora is buggy -- I forget the exact
error now -- so I used lorax from git, hence all the PATH/PYTHONPATH
settings.

(2) This builds the tree into /tmp/tree which you then need to copy to
a web server.

This boots further under virt-install -l http://server/path/to/tree
but then I hit an anaconda^W blivet bug. It seems to assume that
aarch64 is always EFI, which is not the case in our VMs:

https://bugzilla.redhat.com/show_bug.cgi?id=1128341