SRU verification for Focal:
I have reproduced the problem with ubiquity 20.04.15 in focal and have verified that the version of ubiquity 20.04.15.1 in -proposed fixes the issue.
I tested on a VM with 3 disks, and it boots from 3rd disk when I set it as the first disk to try. Otherwise it doesn't find any bootable device but I suppose it's because the VM doesn't try the other disks in sequence.
SRU verification for Focal:
I have reproduced the problem with ubiquity 20.04.15 in focal and have verified that the version of ubiquity 20.04.15.1 in -proposed fixes the issue.
I tested on a VM with 3 disks, and it boots from 3rd disk when I set it as the first disk to try. Otherwise it doesn't find any bootable device but I suppose it's because the VM doesn't try the other disks in sequence.
Marking as verification-done