diff --git a/htdocs/install/check.php b/htdocs/install/check.php
index b3fed83bce6..807cde9219c 100644
--- a/htdocs/install/check.php
+++ b/htdocs/install/check.php
@@ -158,7 +158,7 @@ else
     $confexists=0;
 
 	# First we try by copying example
-	if (copy($conffile.".example", $conffile))
+	if (@copy($conffile.".example", $conffile))
 	{
 		# Success
 		dolibarr_install_syslog("check: copied file ".$conffile.".example into ".$conffile." done successfully.");
diff --git a/htdocs/install/etape0.php b/htdocs/install/etape0.php
index b04e968f0e3..adf3b58a22f 100644
--- a/htdocs/install/etape0.php
+++ b/htdocs/install/etape0.php
@@ -177,7 +177,7 @@ if (! $error)
 else
 {
 		if (isset($db)) print $db->lasterror();
-		if (! $db->connected) print '<br>'.$langs->trans("BecauseConnectionFailedParametersMayBeWrong").'<br><br>';
+		if (isset($db) && ! $db->connected) print '<br>'.$langs->trans("BecauseConnectionFailedParametersMayBeWrong").'<br><br>';
 		print $langs->trans("ErrorGoBackAndCorrectParameters");
 		$error++;
 }