The can't create /boot on RAID thing is unfortunate but fiddly and didn't get fixed in time for the point release. I'm not sure why your final attempt failed, we need to implement subiquity collect-logs or something similar :/
The can't create /boot on RAID thing is unfortunate but fiddly and didn't get fixed in time for the point release. I'm not sure why your final attempt failed, we need to implement subiquity collect-logs or something similar :/