UNetbootin, Universal Netboot Installer

UNetbootin loads utilities or installs Linux/BSD to a partition or USB drive without a CD. It can use an existing disk image/kernel/initrd file, or download a supported distro or system utility (such as Ubuntu, Fedora, openSUSE, FreeBSD, PartedMagic, etc

http://sourceforge.net/projects/unetbootin/

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