Sometimes you just want to boot Anaconda from a software raid device that houses both the stage1 (initrd.img) and stage2 (install.img) images. There are various reasons to do this some of which include: Booting Anaconda into rescue mode from hard drive (RAID 1) Installing directly from hard drive (RAID 1) Running PreUpgrade (Now Deprecated) Running Anaconda from a RAID 1 device is unsupported at least up until the rhel 6.4 version of Anaconda and is documented in BZ #500004 (note that this is...