diff --git a/webif/html/diag/disk.jim b/webif/html/diag/disk.jim
index f6f0dc0..4dc0658 100755
--- a/webif/html/diag/disk.jim
+++ b/webif/html/diag/disk.jim
@@ -30,7 +30,10 @@ puts "
 <table>
 <tr><th class=key>SMART Status</th><td>$smart<td></tr>
 "
-foreach line [split [exec /bin/smartctl -i $device] "\n"] {
+if {[catch {set msg [exec /bin/smartctl -i $device]} xmsg]} {
+	set msg $xmsg
+}
+foreach line [split $msg "\n"] {
 	if {[string match "*Not in smartctl database*" $line]} continue
 	if {[string match "*: *" $line]} {
 		regsub -all -- {[[:space:]]+} $line " " line
@@ -95,8 +98,11 @@ set nolife {184 187 188 189 191 197 198}
 
 set derive {4 "" 5 sectors 9 hours 12 cycles 192 "" 193 "cycles"}
 
+if {[catch {set msg [exec /bin/smartctl -A $device]}]} {
+	set msg ""
+}
 set i 0
-foreach line [split [exec /bin/smartctl -A $device] "\n"] {
+foreach line [split $msg "\n"] {
 	regsub -all -- {[[:space:]]+} $line " " line
 	regsub -all -- {^[[:space:]]+} $line "" line
 	if {[incr i] < 8} continue
@@ -185,8 +191,8 @@ puts {
 </tr>
 }
 
-if {[catch {set msg [exec /bin/smartctl -l selftest $device]} xmsg]} {
-	set msg $xmsg
+if {[catch {set msg [exec /bin/smartctl -l selftest $device]}]} {
+	set msg ""
 }
 
 set i 0