I was following tutorial to make a usb stick linux extension (so i can put timeshift snapshot in it). https://www.tutorialspoint.com/how-to-mount-usb-drive-in-a-linux-system
but sudo umount /dev/ssd1 result a denied action with reason “target is busy”
Make sure any files you opened from there have been closed, that the file manager isn’t looking at that location and you don’t have any terminals that have cd’d into a directory on the device.
closed everything, except for firefox and vim, have nothing to do with usbstick, it is still “target is busy”
is there any thing that can be use to see what is holding it back ?