[CentOS] fresh C7.7 install

HI all,

I just did a fresh C7 install using kickstart.

fdisk -l /dev/sda shows:
#         Start          End    Size  Type            Name
 1         2048      2050047   1000M  EFI System      EFI System Partition
 2      2050048    104450047   48.8G  Microsoft basic
 3    104450048    112642047    3.9G  Linux swap
 4    112642048    234440703   58.1G  Microsoft basic

What extra do I need to specify in my kickstart so that the "type" above is
not Microsoft basic?

For example, currently a line in my kickstart would be:
part /home --ondisk=/dev/sda --fstype ext4 --size=58G --asprimary


What is missing so the type is set correctly to linux root or linux home?

Thanks,

Jerry