On 13/10/2013 17:44, Martin Wilck wrote:

On 10/11/2013 09:49 PM, Brian Candler wrote:

quoted

  > Maybe, but your setup is pretty unusual. These MD arrays are "disks"
for the installer, and thus would need to be partitioned. I believe it
would work better that way. I have never tried an LVM PV on a whole disk.

It wouldn't let me partition md125 either. It just did nothing when I
clicked "Edit".

I assume that that has something to do with the pre-exisiting PV.

There were two md volumes: one was an existing PV; one had been used an 
existing ext4 filesystem natively, and was neither partitioned nor a PV.

The one which was ext4 did nothing when I tried to partition it (by 
clicking the "Edit..." button). The one which was a PV gave an error 
when I tried to edit it (fair enough). But then after I removed all the 
LVs and the VG, clicking "Edit..." on that one no longer gave an error, 
but it just did nothing.

what you describe is "just" an
anaconda problem.

True enough.