diff --git a/apps/settings/lib/Settings/Admin/Server.php b/apps/settings/lib/Settings/Admin/Server.php
index 9a81e41c1acdc..ad84bdfc6913d 100644
--- a/apps/settings/lib/Settings/Admin/Server.php
+++ b/apps/settings/lib/Settings/Admin/Server.php
@@ -58,8 +58,7 @@ public function getForm() {
 			'lastcron' => $this->config->getAppValue('core', 'lastcron', false),
 			'cronMaxAge' => $this->cronMaxAge(),
 			'cronErrors' => $this->config->getAppValue('core', 'cronErrors'),
-			'cli_based_cron_possible' => function_exists('posix_getpwuid'),
-			'cli_based_cron_user' => function_exists('posix_getpwuid') ? posix_getpwuid(fileowner(\OC::$configDir . 'config.php'))['name'] : '',
+			'cli_based_cron_user' => fileowner(\OC::$configDir . 'config.php'),
 		];
 
 		return new TemplateResponse('settings', 'settings/admin/server', $parameters, '');
diff --git a/apps/settings/templates/settings/admin/server.php b/apps/settings/templates/settings/admin/server.php
index 635e1477fe3a9..84b675219d716 100644
--- a/apps/settings/templates/settings/admin/server.php
+++ b/apps/settings/templates/settings/admin/server.php
@@ -92,22 +92,10 @@
 				<input type="radio" name="mode" value="cron" class="radio"
 					   id="backgroundjobs_cron" <?php if ($_['backgroundjobs_mode'] === "cron") {
 			print_unescaped('checked="checked"');
-		}
-				if (!$_['cli_based_cron_possible']) {
-					print_unescaped('disabled');
-				}?>>
+		} ?>>
 				<label for="backgroundjobs_cron">Cron</label><br/>
 				<em><?php p($l->t("Use system cron service to call the cron.php file every 5 minutes.")); ?>
-					<?php if ($_['cli_based_cron_possible']) {
-					p($l->t('The cron.php needs to be executed by the system user "%s".', [$_['cli_based_cron_user']]));
-				} else {
-					print_unescaped(str_replace(
-							['{linkstart}', '{linkend}'],
-							['<a href="http://php.net/manual/en/book.posix.php">', ' ↗</a>'],
-							$l->t('To run this you need the PHP POSIX extension. See {linkstart}PHP documentation{linkend} for more details.')
-						));
-				} ?></em>
-
+					<?php p($l->t('The cron.php needs to be executed by the user id "%s".', [$_['cli_based_cron_user']])); ?></em>
 			</p>
 		</fieldset>
 	</form>
diff --git a/apps/settings/tests/Settings/Admin/ServerTest.php b/apps/settings/tests/Settings/Admin/ServerTest.php
index f37cb01a40d35..b27d12a1a0717 100644
--- a/apps/settings/tests/Settings/Admin/ServerTest.php
+++ b/apps/settings/tests/Settings/Admin/ServerTest.php
@@ -96,8 +96,7 @@ public function testGetForm(): void {
 				'lastcron' => false,
 				'cronErrors' => '',
 				'cronMaxAge' => 1337,
-				'cli_based_cron_possible' => true,
-				'cli_based_cron_user' => function_exists('posix_getpwuid') ? posix_getpwuid(fileowner(\OC::$configDir . 'config.php'))['name'] : '', // to not explode here because of posix extension not being disabled - which is already checked in the line above
+				'cli_based_cron_user' => fileowner(\OC::$configDir . 'config.php'),
 			],
 			''
 		);
diff --git a/console.php b/console.php
index 565569ef28ba8..c44c020d2de8f 100644
--- a/console.php
+++ b/console.php
@@ -64,14 +64,14 @@ function exceptionHandler($exception) {
 		echo "The posix extensions are required - see http://php.net/manual/en/book.posix.php" . PHP_EOL;
 		exit(1);
 	}
-	$user = posix_getpwuid(posix_getuid());
-	$configUser = posix_getpwuid(fileowner(OC::$configDir . 'config.php'));
-	if ($user['name'] !== $configUser['name']) {
+	$user = posix_getuid();
+	$configUser = fileowner(OC::$configDir . 'config.php');
+	if ($user !== $configUser) {
 		echo "Console has to be executed with the user that owns the file config/config.php" . PHP_EOL;
-		echo "Current user: " . $user['name'] . PHP_EOL;
-		echo "Owner of config.php: " . $configUser['name'] . PHP_EOL;
-		echo "Try adding 'sudo -u " . $configUser['name'] . " ' to the beginning of the command (without the single quotes)" . PHP_EOL;
-		echo "If running with 'docker exec' try adding the option '-u " . $configUser['name'] . "' to the docker command (without the single quotes)" . PHP_EOL;
+		echo "Current user id: " . $user . PHP_EOL;
+		echo "Owner id of config.php: " . $configUser . PHP_EOL;
+		echo "Try adding 'sudo -u #" . $configUser . "' to the beginning of the command (without the single quotes)" . PHP_EOL;
+		echo "If running with 'docker exec' try adding the option '-u " . $configUser . "' to the docker command (without the single quotes)" . PHP_EOL;
 		exit(1);
 	}
 
diff --git a/cron.php b/cron.php
index fd7d2040f1b1f..b8202dd9a88e2 100644
--- a/cron.php
+++ b/cron.php
@@ -94,15 +94,16 @@
 			exit(1);
 		}
 
-		$user = posix_getpwuid(posix_getuid());
-		$configUser = posix_getpwuid(fileowner(OC::$configDir . 'config.php'));
-		if ($user['name'] !== $configUser['name']) {
+		$user = posix_getuid();
+		$configUser = fileowner(OC::$configDir . 'config.php');
+		if ($user !== $configUser) {
 			echo "Console has to be executed with the user that owns the file config/config.php" . PHP_EOL;
-			echo "Current user: " . $user['name'] . PHP_EOL;
-			echo "Owner of config.php: " . $configUser['name'] . PHP_EOL;
+			echo "Current user id: " . $user . PHP_EOL;
+			echo "Owner id of config.php: " . $configUser . PHP_EOL;
 			exit(1);
 		}
 
+
 		// We call Nextcloud from the CLI (aka cron)
 		if ($appMode !== 'cron') {
 			$config->setAppValue('core', 'backgroundjobs_mode', 'cron');