Removing old linux in the %pre section

["niall el-assaad" <niallel gmail com>]

Hi,

I've got a fc6 build that I want to move to centos, i just want to keep a single directory.

Is there some way in the %pre section I could delete all the directories off the disk (apart from 1) and then have kickstart continue and install centos?

I've tried but the %pre section doesn't seem to work. I'm using /mnt/sysimage to access the hard disk, but doesn't seem to work.

Any ideas?

thanks,