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This supposed to sound easy. But I am having problem getting out of this quagmire. I was able to mount a handy drive at sda1 to /dev/hd and successfully read its content. I had not open any of its files.
I wanted to unplug it out of its usb port, but I was having problem unmounting it.
as well as
but keep getting
device is busy
I even tried to umount -f but to no avail.
I have checked and has not found any open file or
man umount did mentioned busy devices but there was no valuable tips which I can apply here. Only that if I remove it without unplugging I might corrupt its file system. Please note that my usb handy drive is in FAT16 (VFAT)
If this is a USB device you should install 'hotplug' to handle the modules, you might be getting the error because of a kernel module, to check try the rmmod command on the module used by the device and then the umount command.