choice iso/img

livarp can be downloaded in .iso or .img format.

iso format is dedicated to cdrom. just burn the iso to enjoy livarp livecd.

img format is dedicated to usbdisks use:

backup all datas from your usb stick (WARNING all datas will be destroyed during the process)
check the usbdisk path:

ls -l /dev/disk/by-path/

will give this kind of output:

lrwxrwxrwx 1 root root 9 Apr 6 21:44 pci-0000:00:1d.7-usb-0:4:1.0-scsi-0:0:0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Apr 6 21:44 pci-0000:00:1d.7-usb-0:4:1.0-scsi-0:0:0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 9 Apr 6 18:27 pci-0000:00:1f.1-scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 6 18:27 pci-0000:00:1f.1-scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Apr 6 18:27 pci-0000:00:1f.1-scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 9 Apr 6 18:27 pci-0000:00:1f.1-scsi-1:0:0:0 -> ../../sr0

here, the usb is declared with the /dev/sdb path.
cd in the livarp.img directory then launch the command as root:

# dd if=livarp_0.3.9-fr.img of=/dev/sdb bs=1M

enjoy livarp-usb :) .