So, following your advise, what I did was "dd status=progress if=/dev/zero of=/dev/sda count=1" and that did indeed fix the anaconda starting up issue. By the way, when I said mirrored, it's raid 1, so if I do to one, I do on both at the same time. The raid is being done and managed on the bios. Maybe poor wording on my side. The thing is, as soon as I try to create partitions/LVMs it returns me an error. Here's the three different outputs: LVM Thin Provisioning https://i.imgur.com/tfbi0oo.jpg (curiously, it's the same output error as when it crashed) LVM https://i.imgur.com/nJXo3aK.jpg Standard Partition https://i.imgur.com/j6gNRpo.jpg After taking the screenshots above, I tried the same process using a CentOS7 minimal image on text mode to see the output, and there's no error output what so ever. Out of curiosity, I tried with a 4.3.3 ovirt node image and I had similar error as above(above I'm using 4.3.4) with a slight different wording, but still the same issue.