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)
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