Sync pxe.ks with cdrom.ks and fix some obvious flaws in the kickstart.
Sync pxe.ks with cdrom.ks and fix some obvious flaws in the kickstart.

vwallfahrer/crowbar,mmnelemane/crowbar,rhafer/crowbar,vwallfahrer/crowbar,tserong/crowbar,rsalevsky/crowbar,crowbar/crowbar,aspiers/crowbar,SUSE-Cloud/crowbar,toabctl/crowbar,SUSE-Cloud/crowbar,mmnelemane/crowbar,MaximilianMeister/crowbar,dirkmueller/crowbar,aplanas/crowbar,nkrinner/crowbar,MaximilianMeister/crowbar,dirkmueller/crowbar,toabctl/crowbar,tserong/crowbar,rhafer/crowbar,rhafer/crowbar,rsalevsky/crowbar,aplanas/crowbar,crowbar/crowbar,aspiers/crowbar,nkrinner/crowbar