src/Api/Vps.php
public function installOperatingSystemUnattended($vpsName, $operatingSystemName, $base64InstallText)
    {
        return $this->call(self::SERVICE, 'installOperatingSystemUnattended', [$vpsName, $operatingSystemName, $base64InstallText]);
    }
public function installOperatingSystemUnattended($vpsName, $operatingSystemName, $base64InstallText)
    {
        return $this->call(self::SERVICE, 'installOperatingSystemUnattended', [$vpsName, $operatingSystemName, $base64InstallText]);
    }
Install an operating system on a vps with a unattended install file.

@param string $vpsName             The name of the VPS
@param string $operatingSystemName The name of the operating to install
@param string $base64InstallText   base64_encoded preseed/kickstart text

@throws \SoapFault

@return mixed