Debian shuts itself down

Dark forces: should you have Debian freshly installed from a USB stick, it may happen that Debian simply shuts itself down.

The reason for this is the power saving mode, which can be disabled with the following command:

sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

to revert this change, just use the command:

sudo systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target