In the past, I could unmount any partition on an external device and then mount it later. Now it behaves abnormally, meaning, when partition is unmounted, the whole device becomes unavailable.
When there are two partitions, if any is mounted, then unmounted one is still present. But when both partitions are unmounted, they became unavailable (no device). The problem begins when my HDD has one partition. Clonezilla can’t use it because it gets mounted automatically whenever I plug it in. So to make it available to Clonezilla, I have to unmount it but… it disappears completely and again, Clonezilla can’t find it. So I have a HDD but can’t use it with Clonezilla.
What is happening and how to fix it?
EDIT: Found some workaround. I disabled automatic mounting. I suspect the issue is, that the system is not scanning for external devices automatically. It only detects them on plug-in action. Could it be some TLP setting?