Thank you. I was talking about the Alpha-Release of F13 and the Live-ISO is just too big for CD-R(W):
On the other recommended options, there might be a problem with my USB-stick, which uses some fancy FAT16 partition layout. Fedoras liveusb-creator doesn't work for me and I fear that copying over an boot image with dd would't work either.
I have however manually prepared the USB-stick with grub2 and e.g. booting SystemRescueCd-x86-1.4.0.iso from it works just fine. I think it should be that easy with Fedora LiveCD-Images too, but I couldn't get 13-Alpha-i686-Live.iso to boot.
Okay, to be fair there is a bug in Grub2 (error: invalid magic number" when booting from ISO loopback) when trying to boot some iso's from USB-sticks. So let's forget about USB-sticks, but it should work with an ISO-Image on hdd right now (as Ubuntu 9.10 images do for reference).
On the other hand I've read of just extracting "vmlinuz0" and "initrd0.img" from the LiveCD to hdd which should allow booting even with grub-legacy. Well, in that case grub complains about "invalid executable format" using the "vmlinuz0" from F13-Alpha-LiveCD.
Propably I'm not the "most experienced end user (TM)" and I know this is neither a Fedora support forum nor a bug tracker. With Grub2 and isoloop in Fedora/Dracut/Grub2 beeing in an early stage it would be the best to give a minimal CD-Image from boot.fedoraproject.org a chance.
Maybe some day booting the LiveCD of Alpha releases will become idiot proof even for regular users through Grub2. Until then I have to wait for "real LiveCD-Images" that fit on a CD-R. Keep up the good work at Fedora/RedHat.