installing FC5 on external usb drive

[ATGardner]

I am trying to install FC5 on my external usb drive (as the title implies..)

At first I was having trouble entering the grub, but I think I got this sorted out - I reinstalled, this time changing the HD order, so that HD0 is my usb drive, and the grub now sits on its MBR. Now when the usb drive is connected, and after I put it as first boot order in the bios (After each re-connection is gets back to the end of the boot queue), it launches the grub console.
I have no idea what I should do from there, as I was expecting some kind of boot menu.
oh - I have added the needed modules using the mkinitrd, and directed my grub.conf file to use the new one. I've added ehci-hcd, usb-storage, scsi_mod and sd_mod.
My grub.conf file now looks like this:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
#          initrd /initrd-version.img
#boot=/dev/sdc
default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
title Fedora Core (2.6.15-1.2054_FC5)
	root (hd0,0)
	kernel /vmlinuz-2.6.15-1.2054_FC5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
	#initrd /initrd-2.6.15-1.2054_FC5.img
	initrd /usbinitrd-2.6.15-1.2054_FC5.img
title Other
	rootnoverify (hd1,0)
	chainloader +1

Am I missing something here? what should I change at this file, or someplace else, to enable the menu so I can chose between the FC and the XP?

Thanks for your help.

[birdman]

Have you changed your init script in your new initrd? You may need to add sleeps into this script or increase the default sleep time for USB. I make the USB sleep 10 or 15 and add a 5 second sleep after all the calls to load the modules have been made.

This link is good, deals with FC3 and 4 but I assume it should be fine for your purposes:
www.vigla.eclipse.co.uk/usb_install.pdf