The error message was introduced in https://github.com/canonical/subiquity/commit/44fca22175eb92a943130ec097c815297fd36ec0
But the unaligned size was already a thing - which used to be okay because add_partition aligns the value up.
The error message was introduced in https:/ /github. com/canonical/ subiquity/ commit/ 44fca22175eb92a 943130ec097c815 297fd36ec0
But the unaligned size was already a thing - which used to be okay because add_partition aligns the value up.