Comment # 2 on bug 1056970 from Jos� Iv�n L�pez Gonz�lez

(In reply to Tal Tamir from comment #1)
> To clarify a point. in all cases (both working and the bug), it deletes the
> original partitions on the drive (as it should, since you select "use whole
> disk").
> 
> The unused space is left unallocated. it does not contain any previous OS.

Do you actually mean unallocated space or not still assigned to a LVM LV? In
the case of LVM, not used space is assigned to the VG, that is, you should have
 obtained an unique partition (Physical Volume) with all the disk space. For a
80 GiB disk the expected layout should be:

With LVM + Separate home
LVM VG: 80 GiB
LVM LV root: 31 GiB
LVM LV home: 47 GiB
LVM LV swap: 2 GiB

With LVM
LVM VG: 80 GiB (38 GiB unassigned)
LVM LV root: 40 GiB
LVM LV swap: 2 GiB

With Partitions
root: 31GiB
home: 47GiB
swap: 2GiB

As you can see, when using LVM, it tends to leave unassigned space, but that
space belongs to the VG, so you could increase the size of your LVs or create
new ones. Anyway, we are redesigning the storage stack, so this behavior is
being revised. You can find more info here:
https://github.com/yast/yast-storage-ng/blob/master/doc/old_and_new_proposal.md#how-the-old-proposal-distributes-the-space

And to be sure any error is happening, could you please attach the logs? Here
you have a guide to obtain it:
https://en.opensuse.org/openSUSE:Report_a_YaST_bug#Attachments_-_y2logs.2C_hwinfo_etc.