uswsusp 0.6~cvs20070618-1ubuntu1 (amd64 binary) in ubuntu gutsy

 uswsusp (also known as µswsusp or simply suspend) contains the programs to
 use the userspace software suspend facility available in Linux kernel
 2.6.17-rc1 and higher. It enables you to save the state of the whole system
 to disk and power off your system. After restarting your system it will be
 put back in the exact system state you left it (this is sometimes called
 hibernation).
 .
 It also includes a program to suspend-to-ram after the state is saved to disk.
 In the suspend-to-ram state the system still uses power, but is faster in
 resuming. In case the battery depletes the state is still on disk and
 resume can continue without data loss.
 .
 Optional features include encrypting the system snapshot and a themeable
 splash screen during the suspend and resume processes.
 .
 To use this package you need a Linux kernel version 2.6.17-rc1 or newer
 configured to use an initramfs. Hooks and scripts to integrate with
 initramfs-tools are provided.
 .
  Homepage: http://suspend.sourceforge.net/