Comment 0 for bug 1868249

While doing a subiquity installation on s390x using DASD disk storage that was used before and was therefore already partitioned, I wanted to change the partition layout during install time.
But in the 'Storage configuration' task I was not able to delete an existing partition:
   ┌───────────────── Cannot delete partition of local disk ────────────────┐
   │ │
   │ Cannot delete a single partition from a device that already has │
   │ partitions. │
   │ │
   │ [ Close ] │
   │ │
   └────────────────────────────────────────────────────────────────────────┘
It should always be possible to delete an existing disk or to white out (low-level format in case of a DASD) the entire disk.
Otherwise existing and already used disks cannot be used with a different disk layout (without manual intervention).

subiquity 20.03.1 was in use.

Btw. I updated to 20.03.2, but subiquity didn't automatically restarted, and since I forgot to do it manually I stayed on 20.03.1.

Not sure if this issue is the same for all disks, or limited to s390x DASD disks.