I found solution for this problem: partman-auto needs this line to work: d-i partman-auto/method string regular
here my complete partition part from preseed file: d-i partman-auto/method string regular d-i partman/choose_partition select Finish partitioning and write changes to disk d-i partman/confirm boolean true -- Cannot preseed partman-auto/select_disk https://launchpad.net/bugs/86510 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
