Supress stderr output from LVM commands

diff --git a/lvm/lvm-lib.pl b/lvm/lvm-lib.pl
index b132394..2274af2 100755 (executable)
--- a/lvm/lvm-lib.pl
+++ b/lvm/lvm-lib.pl
@@ -44,7 +44,7 @@ else {
        # Use pvdisplay command
        local $pv;
        local $_;
-       open(DISPLAY, "pvdisplay |");
+       open(DISPLAY, "pvdisplay 2>/dev/null |");
        while(<DISPLAY>) {
                s/\r|\n//g;
                if (/PV\s+Name\s+(.*)/i) {
@@ -88,7 +88,7 @@ return @rv;
 sub get_physical_volume_usage
 {
 local @rv;
-open(DISPLAY, "pvdisplay -m ".quotemeta($_[0]->{'device'})." |");
+open(DISPLAY, "pvdisplay -m ".quotemeta($_[0]->{'device'})." 2>/dev/null |");
 local $lastlen;
 while(<DISPLAY>) {
        if (/Physical\s+extent\s+(\d+)\s+to\s+(\d+)/) {
@@ -179,7 +179,7 @@ if (-d $lvm_proc) {
 else {
        # Parse output of vgdisplay
        local $vg;
-       open(DISPLAY, "vgdisplay |");
+       open(DISPLAY, "vgdisplay 2>/dev/null |");
        while(<DISPLAY>) {
                s/\r|\n//g;
                if (/VG\s+Name\s+(.*)/i) {
@@ -293,7 +293,7 @@ else {
        local $lv;
        local $_;
        local ($vg) = grep { $_->{'name'} eq $_[0] } &list_volume_groups();
-       open(DISPLAY, "lvdisplay -m |");
+       open(DISPLAY, "lvdisplay -m 2>/dev/null |");
        while(<DISPLAY>) {
                s/\r|\n//g;
                if (/LV\s+Name\s+(.*\/(\S+))/i) {
@@ -352,7 +352,7 @@ sub get_logical_volume_usage
 local @rv;
 if (&get_lvm_version() >= 2) {
        # LVdisplay has new format in version 2
-       open(DISPLAY, "lvdisplay -m ".quotemeta($_[0]->{'device'})." |");
+       open(DISPLAY, "lvdisplay -m ".quotemeta($_[0]->{'device'})." 2>/dev/null |");
        while(<DISPLAY>) {
                if (/\s+Physical\s+volume\s+\/dev\/(\S+)/) {
                        push(@rv, [ $1, undef ]);
@@ -365,7 +365,7 @@ if (&get_lvm_version() >= 2) {
        }
 else {
        # Old version 1 format
-       open(DISPLAY, "lvdisplay -v ".quotemeta($_[0]->{'device'})." |");
+       open(DISPLAY, "lvdisplay -v ".quotemeta($_[0]->{'device'})." 2>/dev/null |");
        local $started;
        while(<DISPLAY>) {
                if (/^\s*PV\s+Name/i) {