[Fedora-livecd-list] Can't boot iso from usb flash device

I noticed that "cat live.iso > usbflashdevice" almost works. Lilo and the kernel starts, but fails to find the root partition. Could it be because blkid shows that it has a LABEL="live" while the kernel parameter is "root=CDLABEL=live"? Changing the kernel parameter to "root=LABEL=live" doesn't work, but "root=/dev/sdb" works. How should it work? livecd-tools-031-1.fc12.1.i686 /Mads