Unfortunately other bugs werre hiding behind this for me: curtin now barfs on /dev/sda2 (if it's Type=0x83) or on /dev/sda3 (if /dev/sda2 type=0x00). Seems like that curtin is very sensitive (too sensitive!)to how preexisting partition layouts look like.
I added the bugs to my subiquity bug report including logs.
@raharper
I can confirm that this fixes the original problem I reported under https:/ /bugs.launchpad .net/ubuntu/ +source/ subiquity/ +bug/1875560
Unfortunately other bugs werre hiding behind this for me: curtin now barfs on /dev/sda2 (if it's Type=0x83) or on /dev/sda3 (if /dev/sda2 type=0x00). Seems like that curtin is very sensitive (too sensitive!)to how preexisting partition layouts look like.
I added the bugs to my subiquity bug report including logs.