Take the 2-minute tour ×  I have read that it is possible to
'umount' a disk that is otherwise busy by using the 'lazy'
option. The manpage has this to say about it:  umount - unmount
file systems  -l Lazy unmount. Detach the filesystem from the
filesystem hierarchy now, and cleanup all references to the
filesystem as soon as it is not busy anymore. This option allows
a "busy" filesystem to be unmounted. (Requires kernel 2.4.11 or
later.)  But what would be the point in that? I considered why
we dismount partitions at all:    1. To remove the hardware   2.
To perform operations on the filesystem that would be unsafe to
do while mounted  In either of these cases, all a 'lazy' unmount
serves IMHO is to make it more difficult to determine if the
disk really is dismounted and you can actually proceed with
these actions. The only application for umount -l seems to be
for inexperienced users to 'feel' like they've achieved
something they haven't.  Why would you use a lazy unmount?
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