I installed FC3 to my usb hard drive and followed Simon's instructions to add usb support in the new boot image at http://simonf.com/usb/ using "cpio" instead of "mount -o loop". But when I booted FC3, it failed. The error message is: RAMDISK: Compressed image found at block 0 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Anyone knows how to fix this issue? Thanks, Guangwen He