<p>Reboot the system into the new generation instead of a switch if the new generation uses a different kernel, kernel modules or initrd than the booted system. See <span class="mnos-option"><a href="/nixpkgs/option/system.autoUpgrade.rebootWindow"><a href="/nixpkgs/option/rebootWindow" rel="nofollow">rebootWindow</a></a></span> for configuring the times at which a reboot is allowed.</p>

system.autoUpgrade.allowReboot

Reboot the system into the new generation instead of a switch if the new generation uses a differe…