Linux doesn’t really know about drives, it knows about partitions and mount points.
Obviously this is a simplification, but in general it’s close enough. It also could well be your problem - timeshift doesn’t know or care that /boot is on the same physical drive as the rest of your system: if it’s a different partition, it’s separate.
Linux doesn’t really know about drives, it knows about partitions and mount points.
Obviously this is a simplification, but in general it’s close enough. It also could well be your problem - timeshift doesn’t know or care that /boot is on the same physical drive as the rest of your system: if it’s a different partition, it’s separate.