Thanks. It was the preseed for installing python2 as a workaround that was there which I forgot to remove. I removed it and it installs correctly, however, I think I may have ran into bug 1618643. I'll need to retry on system with legacy boot mode set.
Thanks. It was the preseed for installing python2 as a workaround that was there which I forgot to remove. I removed it and it installs correctly, however, I think I may have ran into bug 1618643. I'll need to retry on system with legacy boot mode set.