Find Open File in a Given Directory
Find the process that’s opened the file from a specified directory. You can use this if you cannot unmount a USB drive and want to know which file is open.
lsof +D /media/usb
Find the process that’s opened the file from a specified directory. You can use this if you cannot unmount a USB drive and want to know which file is open.
lsof +D /media/usb
Force umount when the device is busy
fuser -km /mnt/hda2