Enable Hibernate

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A number of ubermix users have expressed an interest in enabling hibernate on ubermix devices. There are a number of reasons why you might want to do this, including:

  • Hibernate lasts far longer than Suspend mode, as no battery power is required to maintain the device's state.
  • In order to enable hibernate, a swap partition must be created, which can increase capacity for running applications on smaller systems.
  • If a system is having issues waking from suspend, hibernate will often work as a work-around

While setting up hibernate can be a very complex, ubermix v1.02+ has an a simple script that automates the process of enabling hibernate on an ubermix device. Please note that this should only be performed on a device with a hard disk, NOT a device with flash storage as its primary disk.

Enable Hibernate

  1. Reboot the device and press ESC immediately after your computer manufacturer's splash screen disappears (you should see a flashing cursor in the top left corner for a few seconds - press the escape key within 3 seconds to view the menu.)
  2. Select "Normal Boot" from the menu (but don't press enter) and press the "e" key on your keyboard
  3. Select the line in the box that begins with the word "initrd" and move the cursor to the end of the line.
  4. Backspace over the four letters "aufs" and replace them with "generic". Do not add any spaces. Then press "ctrl+x" on your keyboard to boot
  5. Open a terminal (ctrl-alt-t) and type /usr/local/lib/hibernate/setup.sh
  6. Reboot

Your device should now have a "Hibernate" option in the power/settings menu, and in the dialog that appears when you press the power button. You can also change the default behavior when you close the lid, etc. under power/settings (the gear in the top-right corner)->System Settings->Power.

Disable Suspend

If you are experiencing problems with suspend and wish to disable it altogether, do the following:

  1. Open a terminal (ctrl-alt-t)
  2. Type sudo gedit /usr/share/polkit-1/actions/org.freedesktop.upower.policy
  3. Locate "<allow_active>yes</allow_active>" under suspend and change it to no
  4. Save and suspend will be gone from the menu on a reboot

Make sure to do this in "generic" mode by following steps 1-4 in the top section, so that the setting will be retained on a reset.

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