Comment 8 for bug 1079185

Verified that flash-kernel now behaves correctly on filesystems where blkid returns the label before the uuid. Of note, this won't fix the ubiquity-based installer, as flash-kernel-installer is built in to ubiquity (and thus the images), and we're not respinning quantal images, but this does fix this same bug in both the netboot installer and in userspace, post-install.