kickstart hangs at "Sending request for IP information for eth0"

[Andrew Zahn]

I have run into a problem with the network installation via pxe as it is 
getting stuck trying to contact the dhcp server "Sending request for IP 
information for eth0". I believe it must be some configuration issue 
because it was previously working until I added a new OS using pxeos. 
Then I noticed my default file was rewritten loosing some modifications 
I made. I added back in the "ksdevice=eth0" as you can see here:

[root at mahi insors_ucs2]# cat /tftpboot/linux-install/pxelinux.cfg/default
default local
timeout 100
prompt 1
display msgs/boot.msg
F1 msgs/boot.msg
F2 msgs/general.msg
F3 msgs/expert.msg
F4 msgs/param.msg
F5 msgs/rescue.msg
F7 msgs/snake.msg

label local
  localboot 1

label 0
  localboot 1

label 1
  kernel rhel4up3es/vmlinuz
  append initrd=rhel4up3es/initrd.img ksdevice=eth0 ramdisk_size=7000 
ks=http://64.157.28.22/ks/ks-rhel4.cfg

label 2
  kernel host4/vmlinuz
  append initrd=host4/initrd.img ksdevice=eth0 ramdisk_size=7000 
ks=http://mahi.insors.net/ks/ks-host4.cfg

label 3
  kernel StandardUCS/vmlinuz
  append initrd=StandardUCS/initrd.img ksdevice=eth0 ramdisk_size=7000 
ks=http://64.157.28.22/ks/ks-ucs.cfg

label 4
  kernel UCSraid1/vmlinuz
  append initrd=UCSraid1/initrd.img ksdevice=eth0 ramdisk_size=7000 
ks=http://64.157.28.22/ks/ks-ucs-swraid.cfg

label 5
  kernel rhel3up8/vmlinuz
  append initrd=rhel3up8/initrd.img ksdevice=eth0 ramdisk_size=7000 
ks=http://mahi.insors.net/ks/ks-ucs.cfg

label 6
  kernel rhel4up3/vmlinuz
  append initrd=rhel4up3/initrd.img ksdevice=eth0 ramdisk_size=7000 
ks=http://64.157.28.22/ks/ks-rhel4.cfg