- if [ "$(blockdev --getro $DEVNAME)" = "1" ] ; then
- logger "forensic mode: device $DEVNAME already set to readonly mode, nothing to do"
+ NAME=$(base $DEVNAME)
+ SYS_DIR=$(get_blockdev_dir)
+
+ if [ -n "$SYS_DIR" ] && [ -n "$NAME" ] ; then
+ DEVICE=$SYS_DIR/*/$NAME
+ if [ -d $DEVICE ] ; then
+ PARENT=$(dir $DEVICE)
+ PARENT=$(base $PARENT)
+ PARENT="/dev/$PARENT"
+ fi
+ fi
+
+ if is_ro "$DEVNAME" ; then
+ logger "forensic mode: device $DEVNAME already set to read-only mode, nothing to do"
+ elif [ -n "$PARENT" ] && ! is_ro "$PARENT" ; then
+ logger "forensic mode: parent device $PARENT is set read-write, not modifying"
+ logger "forensic mode: use blockdev --setro $DEVNAME to set it manually"