bash

librenms@librenms:~$ lnms maintenance:rrd-step all

 Before continuing, please confirm that you have backed up your rrd files. (yes/no) [no]:
 > yes

Exception: LibreNMS\Exceptions\RrdException Usage: rrdtool list [--daemon <addr> [--noflush]] [--recursive] <directory> @ /opt/librenms/LibreNMS/RRD/RrdProcess.php:74
#0 /opt/librenms/vendor/symfony/process/Process.php(1320): LibreNMS\RRD\RrdProcess->LibreNMS\RRD\{closure}()
#1 /opt/librenms/vendor/symfony/process/Process.php(507): Symfony\Component\Process\Process->Symfony\Component\Process\{closure}()
#2 /opt/librenms/LibreNMS/RRD/RrdProcess.php(67): Symfony\Component\Process\Process->waitUntil()
#3 /opt/librenms/app/Console/Commands/MaintenanceRrdStep.php(135): LibreNMS\RRD\RrdProcess->run()
#4 /opt/librenms/app/Console/Commands/MaintenanceRrdStep.php(48): App\Console\Commands\MaintenanceRrdStep->listFiles()
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): App\Console\Commands\MaintenanceRrdStep->handle()
#6 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Util.php(43): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(96): Illuminate\Container\Util::unwrapIfClosure()
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(35): Illuminate\Container\BoundMethod::callBoundMethod()
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(836): Illuminate\Container\BoundMethod::call()
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/Console/Command.php(211): Illuminate\Container\Container->call()
#11 /opt/librenms/vendor/symfony/console/Command/Command.php(341): Illuminate\Console\Command->execute()
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Console/Command.php(180): Symfony\Component\Console\Command\Command->run()
#13 /opt/librenms/vendor/symfony/console/Application.php(1102): Illuminate\Console\Command->run()
#14 /opt/librenms/vendor/symfony/console/Application.php(356): Symfony\Component\Console\Application->doRunCommand()
#15 /opt/librenms/vendor/symfony/console/Application.php(195): Symfony\Component\Console\Application->doRun()
#16 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(197): Symfony\Component\Console\Application->run()
#17 /opt/librenms/lnms(35): Illuminate\Foundation\Console\Kernel->handle()
#18 {main}

In RrdProcess.php line 74:

  Usage: rrdtool list [--daemon <addr> [--noflush]] [--recursive] <directory>