I'm copying and pasting by line and it doesn't work
umount /dev/sda1
SPARK:~# umount /dev/sda1
umount: can't umount /dev/sda1: Invalid argument
I'm copying and pasting by line and it doesn't work
umount /dev/sda1
SPARK:~# umount /dev/sda1
umount: can't umount /dev/sda1: Invalid argument