From The Chakra Project - Wiki

This guide details how to create a bootable USB-stick out of provided Chakra GNU/Linux ISOs/IMGs. The USB device must be 1GB or larger. And before following any steps, make sure the device is plugged but not mounted.

GNU/Linux

From GNU/Linux command line (recommended)

In order to create a bootable USB device, you will need both syslinux (which provides isohybrid) and coreutils (which provides dd). No matter which distro you are using, you probably have them in the repositories, so install them.

Once installed the necesary software, just do this:

isohybrid  /path/to/the/downloaded/iso
dd if=/path/to/the/downloaded/iso of=/path/to/the/USB/device

Where /path/to/the/USB/device would be the USB device under /dev. It will probably be /dev/sd-, where - will be a letter.

Then you can check that the creation of the bootable USB stick was successful. Use fdisk -l as root to check it. You should see an asterisk (*) like this in your USB line:

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1         697      713728   17  Hidden HPFS/NTFS

Windows

From Windows command line

First you need to download isohybrid and dd.

Once installed those utilities, open a console and do this:

isohybrid.exe  /path/to/the/downloaded/iso
dd.exe if=/path/to/the/downloaded/iso of=/path/to/the/USB/device

LILI USB Creator

In order to install Chakra GNU/Linux image in an USB stick with LILI USB Creator, check Chakra Forums.