Index: tools/test_recovery.sh
--- tools/test_recovery.sh.orig
+++ tools/test_recovery.sh
@@ -7,7 +7,7 @@
 
 export PATH=$srcdir:../tools:../../tools:.:$PATH
 
-RECOVERY_BASE=`mktemp -t recoveryXXXX`
+RECOVERY_BASE=`mktemp -t recoveryXXXXXXXXXX`
 RECOVERY_KEY=$RECOVERY_BASE.key
 RECOVERY_BAK=$RECOVERY_BASE.bak
 RECOVERY_ISO=$RECOVERY_BASE.raw
