It's not that I'm tied so much to the disk config, when moving to a VM environment I see little issue with having basic (vs LVM) on a single root disk for a majority of situations. In this case though, the conversion scripts weren't catching all the device reference changes, so GRUB wasn't updated appropriately, so the mounts didn't take. For us, conversion is about avoiding the inherent risks/work/downtime involved in migration of data by data, so this flexibility could be helpful to allow this. (but i'll be that's what everyone says 
, I totally understand the prioritization and resource constraint decisions 
)
Br