Index: scripts/wsrep_sst_mariabackup.sh
--- scripts/wsrep_sst_mariabackup.sh.orig
+++ scripts/wsrep_sst_mariabackup.sh
@@ -101,6 +101,12 @@ if [ -z "$BACKUP_BIN" ]; then
     exit 42
 fi
 
+GFIND_BIN=$(commandex 'gfind')
+if [ -z "$GFIND_BIN" ]; then
+    wsrep_log_error 'gfind binary not found in path'
+    exit 42
+fi
+
 DATA="$WSREP_SST_OPT_DATA"
 INFO_FILE='xtrabackup_galera_info'
 IST_FILE='xtrabackup_ist'
@@ -441,7 +447,7 @@ get_footprint()
     cd "$DATA_DIR"
     local payload_data=$(find . \
         -regex '.*undo[0-9]+$\|.*\.ibd$\|.*\.MYI$\|.*\.MYD$\|.*ibdata1$' \
-        -type f -print0 | du --files0-from=- --block-size=1 -c -s | \
+        -type f -print0 | xargs -0 du -c -s | \
         awk 'END { print $1 }')
     local payload_undo=0
     if [ -n "$ib_undo_dir" -a "$ib_undo_dir" != '.' -a \
@@ -449,7 +455,7 @@ get_footprint()
     then
         cd "$ib_undo_dir"
         payload_undo=$(find . -regex '.*undo[0-9]+$' -type f -print0 | \
-            du --files0-from=- --block-size=1 -c -s | awk 'END { print $1 }')
+            xargs -0 du -c -s | awk 'END { print $1 }')
     fi
     cd "$OLD_PWD"
 
@@ -798,7 +804,7 @@ recv_joiner()
     local ltcmd="$tcmd"
     if [ $tmt -gt 0 ]; then
         if [ -n "$(commandex timeout)" ]; then
-            if timeout --help | grep -qw -F -- '-k'; then
+            if timeout --help 2>/dev/null | grep -qw -F -- '-k'; then
                 ltcmd="timeout -k $(( tmt+10 )) $tmt $tcmd"
             else
                 ltcmd="timeout -s9 $tmt $tcmd"