Using the following entries in the kickstart file
part / --onpart sda5
part /boot --onpart sda1
part swap --onpart sda6
the following message occured during installation
line 395, in addMount
self.mounts[location] = (device,
--onpart is know to have issues in 6.2.
I will investigate your particular case.
Did you have a clearpart directive in your ks file?
It won't generally work to have clearpart specified and try to use --onpart on
a logical partition, since if any logical partitions preceeding the logical
partition are removed then the numbering is all screwed up.
Please reopen this bug if you continue to have issues.