Redhat kickstart from USB disk

I want to install redhat ES 5 I have a kickstart.cfg file that I would like to use but dont have access to a kickstart server. Is it possible to boot of CD and point it at the kickstart.cfg file on a usb disk and have it read that.  

It looked like it was possible but anytime I try to use the option it fails.  Would someone know the steps and commands please
enigma1234567890Asked:
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enigma1234567890Connect With a Mentor Author Commented:
issue resolved permission on file needs to be 600
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enigma1234567890Author Commented:
also need to know what modification to make to cfg file so it reads from cdrom
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enigma1234567890Author Commented:
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enigma1234567890Author Commented:
I tried entering

linux ks=hd:sda1:/ks.cfg

but I get advised unable to download kickstart file any ideas how I confirm if the usb device is sda ???
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Monis MontherSystem ArchitectCommented:
run the command fdisk -l and post your output here
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enigma1234567890Author Commented:
from what I am building a server from scratch ?
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joolsCommented:
sda refers to the first scsi disk, if you have other scsi disks in the server then sda is likely to be one of those disks and your usb disk could be something else...

try sdb1 or sdc1 etc.
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enigma1234567890Author Commented:
tried all that
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enigma1234567890Author Commented:
does the drive have to be formated in a special way to read it ?  if so how do i get usb formatted
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joolsCommented:
I believe it has to be ext3 or vfat...
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enigma1234567890Author Commented:
found answer myself
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