Clonezilla: shutting down caused by "critical temperature"

When running clonezilla on a i3 laptop, it shut down because of high cpu temperature. The solution for this is below:

• While getting into the clonezilla wizard, and before starting the cloning process, Alt+F2 open another terminal:
• Run the command

  cpufreq-into

  you will see the output like below:

  analyzing CPU 0:
    driver: acpi-cpufreq
    CPUs which run at the same hardware frequency: 0
    CPUs which need to have their frequency coordinated by software: 0
    maximum transition latency: 10.0 us.
    hardware limits: 933 MHz - 2.13 GHz
    available frequency steps: 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47GHz, 1.33GHz, 1.20 GHz, 1.07 GHz, 933 MHz

• Run the follow command:

  sudo cpufreq-set -c 0 -f 1.60GHz

  to throttle the cpu speed to 1.6GHz.
• Alt+F1 to switch back to clonezilla terminal, and start the clone process

See also

• How-to: Overcome “critical temperature” problem with CloneZilla
• Use clonezilla i486 build might help