Using Red Hat IA-64 09/21/00 CD Specifying in a kickstart file --onpart without a --noformat: zerombr yes clearpart --all part /boot/efi --size 100 --ondisk sda --type 6 --onpart sda1 part / --size 512 --ondisk sda part /usr --size 3072 --ondisk sda part swap --size 512 --ondisk sda part /tmp --size 256 --ondisk sda part /var --size 256 --ondisk sda --grow where sda1 is an existing partition, Disk Druid drops this exception/python traceback message: "-onpart specified for mount point /boot/efi on non-ext2 partition without --dontformat". --dontformat isn't correct. It's --noformat.
Fixed in CVS on HEAD.