From time to time I get the message "creating hardlink to timeshift file failed" and try to figure out what's wrong. What I know now is blkid /dev/sda* Gives a sda1 as ext3. This should be right (needs ext2 or ext3 for timeshift). But when I type mount I see /dev/sda1 on /media/hdd type ext4 (rw,relatime,data=ordered) And the Device Manager gives as mountingpoint "not mapped". Although recording works I gave it the map /media/hdd. Now I have the questions - Where are those mounts stored (I don't see them in /etc/fstab)? - What I understood is that the partition is ext3 but mounted as ext4. I'm I right and how can I change that? - What is set with the Device Manager (what is it doing)? Changes there are not seen in the mounts and with "not mapped" there is still a mount seen from the console.