preserve context make issue on many OS

fix #108

log2ram

@@ -16,7 +16,7 @@ syncToDisk () {
     if [ "$USE_RSYNC" = true ]; then
         rsync -aXv --inplace --no-whole-file --delete-after $RAM_LOG/ $HDD_LOG/ 2>&1 | tee -a $LOG2RAM_LOG
     else
-        cp -rfup --preserve=context $RAM_LOG/ -T $HDD_LOG/ 2>&1 | tee -a $LOG2RAM_LOG
+        cp -rfup $RAM_LOG/ -T $HDD_LOG/ 2>&1 | tee -a $LOG2RAM_LOG
     fi
 }
 
@@ -41,7 +41,7 @@ syncFromDisk () {
     if [ "$USE_RSYNC" = true ]; then
         rsync -aXv --inplace --no-whole-file --delete-after $HDD_LOG/ $RAM_LOG/ 2>&1 | tee -a $LOG2RAM_LOG
     else
-        cp -rfup --preserve=context $HDD_LOG/ -T $RAM_LOG/ 2>&1 | tee -a $LOG2RAM_LOG
+        cp -rfup $HDD_LOG/ -T $RAM_LOG/ 2>&1 | tee -a $LOG2RAM_LOG
     fi
 }