centos7 with network install OS,”Kickstart insufficient” on the disk

kickstart分区的格式如下:
# Disk partitioning information
zerombr
clearpart –initlabel –all
part /boot –ondisk=sda –fstype ext4 –size=512 –asprimary
part pv.3 –size=1 –grow –ondisk=sda
volgroup vg01 pv.3
logvol / –fstype ext4 –name=root_lv –vgname=vg01 –size=102400
logvol /var –fstype ext4 –name=var_lv –vgname=vg01 –size=1 –grow
logvol swap –fstype swap –name=swap_lv –vgname=vg01 –recommended
在GUI界面下出现”Kickstart insufficient”的错误,错误原因可能为:请求磁盘的大小超过了硬盘的大小