Comment 1 for bug 1847944

In Disco:
- .iso from a CD-ROM or USB stick is mounted as whole block device, i.e. /dev/sr0 /dev/sda
- .iso from a partition on disk (i.e. recovery partition) is mounted as a partition, i.e. /dev/sda1
- in partman-auto black-list is set on whole block device mounts, i.e. /dev/sr0 /dev/sda

In Eoan:
- .iso from a CD-ROM or USB stick is mounted as a partition, i.e. /dev/sr01 (?!) /dev/sda1
- .iso from a partition on disk (i.e. recovery partition) is mounted as a partition, i.e. /dev/sda1
- in partman-auto blacklist is set on either whole block device or partition mounts, i.e. /dev/sda /dev/sda1 etc.

So, that's where we are at.