I made a USB device, and could boot up into the install
application,
but when to choose a device as install source , the sdb1 device, USB disk,
verified to be not available , what is the reason ,
how should i do and do I have to make DVD disk to install?
Here is one method that I use when it does not work to boot USB directly.
The method requires downloading a netinst.iso image (about 350 to 400MB)
and burning the netinst.iso image to a CD or DVD platter.
(Using a DVD tends to be somewhat faster, but is otherwise equivalent to CD.)
1. livecd-iso-to-disk Fedora-19-x86_64-DVD.iso /dev/sdX1
where /dev/sdX1 is the USB partition.
2. Burn Fedora-19-x86_64-netinst.iso to a CD or DVD platter.
3. Boot the netinst platter.
4. Type <UpArrow> to highlight the "Install ..." option,
then type <Tab> to display the actual kernel boot command line.
5. Change from "inst.stage2=hd:LABEL=Fedora\x2019\x20x86_64"
change to "inst.stage2-hd:LABEL=LIVE"
6. Type <Return>, which boots the Anaconda installer with the LIVE USB
device as the Software Source.
You can also use PXE boot in a similar way to the netinst boot above.
Booting PXE does not require burning a platter, but does require some setup.