Changing the preseed to have a password, e.g.
d-i oem-config/enable boolean true d-i user-setup/allow-password-weak boolean true d-i passwd/user-fullname string OEM Configuration (temporary user) d-i passwd/username string oem d-i passwd/user-password string oem d-i passwd/user-password-again string oem
prevents the crash.
Changing the preseed to have a password, e.g.
d-i oem-config/enable boolean true allow-password- weak boolean true user-fullname string OEM Configuration (temporary user) user-password string oem user-password- again string oem
d-i user-setup/
d-i passwd/
d-i passwd/username string oem
d-i passwd/
d-i passwd/
prevents the crash.